Fire in His Fingertips

Just look only at me. I'll only... look at you as well Ryo.

—Souma Mizuno

Fire in His Fingertips (original Japanese title: Yubisaki kara Honki no Netsujō: Charao Shōbōshi wa Massugu na Me de Watashi wo Daita) is a hentai manga series. The story revolves around a young office worker named Ryo Fujihashi who is friends with a firefighter, Souma Mizuno. Assuming he's a womanizer, she has difficulty setting him up on dates. However when a fire breaks out in her apartment, Souma offers her a place to stay and soon learns he's been in love with her for a long time.

An anime adaption was made in 2019 called Yubisaki kara Honki no Netsujō: Osana Najimi wa Shōbōshi or Fire In His Fingertips: My Childhood Friend is a FireFighter. in 2020, a second season aired called Fire in His Fingertips 2: My Boyfriend is a Firefighter or Yubisaki kara Honki no Netsujo 2 -Koibito wa Shoboshi.

Tropes used in Fire in His Fingertips include:

A Man Is Always Eager: It does not take much for Ryo to turn Souma on. Souma claims it was because he waited ten years to be with Ryo. By chapter 139, Ryo knows that once his switch is flipped on, there's no stopping him.
All Women Are Prudes: Subverted with Ryo. She always acts nervous when Souma is turned on and has called him a pervert and a womanizer, but there are strong hints throughout the series that suggest that she does enjoy having sex with him, such as when she insisted he pleasure her at a restaurant or when she tells him to blindfold her even though he was only joking. At two points in the manga, she has even performed fellatio on him.
Anger Born of Worry: One of the few times Souma has ever gotten angry with Ryo is when she stopped making noise while trapped in her apartment during a fire, which got him thinking of a worst case scenario.
Berserk Button: Adultery pisses Souma off to no end. He was quite intimidating towards his sister's boyfriend when he found out he cheated on her, and even Ryo had to face a very angry Souma when she pretended to be Rei's girlfriend.
Beware the Nice Ones: Souma's not a violent person and is a friendly guy, but remember he's a firefighter and is quite strong. This is shown when he grabbed an arsonist strangling Ryo and intimidated his sister's Jerk Ass boyfriend.
Beta Couple: Yuuki Izumi and Midori Watanabe.
- The anime hints at a relationship with Jun Hase and Ayako Shinoda.
Big Brother Instinct: Do not cheat on Souma's sister. Just don't.
Big Damn Heroes: Souma grabbed an arsonist that was strangling Ryo.
Bigger Is Better in Bed: Ryo often describes Souma as quite big during sex. At two points she claims she could feel Souma's penis in her belly and felt her body was being molded to fit it. Souma can even get even bigger when Ryo does something Souma thinks is cute or when Souma feels she is being more assertive.
Calling Your Orgasms: Ryo once said she was going to come just by feeling Souma inside her. Souma told her to hold it until he was ready.
Can't Act Perverted Toward a Love Interest: Inverted, Souma acts this way only towards Ryo.
Can't Hold Her Liquor: Ryo gets drunk quite easily and even embarrassed Souma at a party while drunk.
Charles Atlas Superpower: A more realistic example. Souma is incredibly strong and can lift a car out of a ditch by himself and run while carrying two grown adults, just by constant training. The fact he has such a strong sex drive suggests he also does not rely on steroids which can cause erectile dysfunction.
Chick Magnet: Souma, Jun, and Yuuki are all this plus Rei. Souma and Jun are the only two that end up with girlfriends though. Even while dating Ryo, Souma still attracts some girls, but his heart belongs to Ryo.
Childhood Friend Romance: Ryo and Souma knew each other since they were children.
Chivalrous Pervert: Souma may be a bit perverted, but he's incredibly loyal and loving towards Ryo. He's also enraged by adultery.
Coitus Ensues: Happens quite a lot since Souma's always horny for Ryo.
Covered in Kisses: In the censored version of the fifth episode of the first season both Jun Hase and Yuki Izuki are covered in lipstick marks.
Covert Pervert: Ryo does her best to hide it, but even Souma knows she is secretly one, especially when she wore very revealing and sexy lingerie.
Could Have Avoided This Plot: A lot of arcs in the manga could have been avoided if things were discussed rather than reacted to. For instance a pregnant woman stayed at Ryo's apartment after a fight with her husband because she thought he was going to buy a luxury car. Turns out he was planning on selling his car for a family one. Rei's arc wouldn't have been as long if Ryo told Souma about him working at the cosmetics company and Rei could have told the girl that had a crush on him he wasn't interested in her instead of asking Ryo to pretend to be his girlfriend.
Ethical Slut: Souma is a male example. He's perverted and wants sex all the time, but he's also loyal to Ryo when she becomes his girlfriend and is enraged by adultery. He's also a fireman and saves people from burning buildings all the time.
Everyone Has Standards: Souma may be a flirt, but adultery enrages him as shown when he found out his sister's boyfriend was cheating on her. He also felt uncomfortable when Ryo insisted he pleasure her in a crowded restaurant, though he did it anyway.
Ferris Wheel Date Moment: Souma and Ryo have sex in a ferris wheel at one point.
Firemen Are Hot: Souma, Jun, and and Yuki, but mostly Souma since he gets the most focus as the main character.
Flat Character: Unless your names are Ryo Fujihashi or Souma Mizuno, chances are you're this in the story.
Freudian Excuse: It's strongly implied that Souma's womanizing was a result of not being in a relationship with Ryo.
Friend to All Children: Souma and Ryo. During a vacation, a lost child shows up. While his parents are being sought out, Ryo and Souma entertain the child with a game of ping pong. When the parents show up and explain they lost their child while their car was in a ditch, Souma gets the car out all by himself. The child is inspired to become a firefighter because of this.
Graceful Loser: Rei backs off on trying to win Ryo's heart when Souma "rescues" him and Ryo from carnival monsters and Ryo says she wants to be with Souma. Rei even goes so far as to end a rumor at work that he and Ryo were dating.
Good People Have Good Sex: Souma may be a bit aggressive when it comes to sex, but he loves Ryo dearly and gives her tons of orgasms during sex.
Handsome Lech: Souma, but only towards Ryo.
Heroes Want Redheads: Souma is in love with his childhood friend Ryo who has red hair.
Huge Guy, Tiny Girl: Souma's Huge Guy to Ryo's Tiny Girl.
Hunk: Souma is very ripped with piercing blue eyes and spiky black hair. Also his friends Jun Hase and Yuki Izumi. The anime series makes all three look like bodybuilders while the manga make them look leaner yet still very muscular.
I Can Change My Beloved: Averted, Ryo likes Souma the way he is, even his sexual aggressiveness and perverted ways. When he tries to change himself when Rei shows up, she changes him back by messing up his hair.
I Want My Beloved to Be Happy: When Rei realizes how happy Ryo is with Souma, he backs off and ends a rumor that he and Ryo were dating. Also Souma tried this when Ryo was offered a job overseas and pretended to have been only interested in her for sex. While this did upset her she realized why he did it and chose to stay with him and becomes his girlfriend.
Insecure Love Interest: Souma became this temporarily when Rei Hidaka, Ryo's ex-boyfriend came into the story. Ryo chose Souma helping him feel secure again.
Ironic Echo: Rei said that when he and Ryo were dating, he was finally allowed to be himself. When he asks why she's dating Souma eight years later, she says it's because she's allowed to be herself.
"It's Not Rape If You Enjoyed It": Even when they become a couple, a lot of the sex scenes aren't with Ryo's consent. However it's strongly implied she still enjoys it as she stayed with Souma even when he technically raped her even without penetration. The only two times she didn't enjoy it are when he does it at her job, which nearly ruins their friendship, or when he does it in response to Ryo pretending to be Rei's girlfriend. Even Souma knows he crossed the line those two times.
Ladykiller in Love: Souma was a womanizer before he finally became Ryo's boyfriend.
Love Triangle: Both Rei and Souma have feelings for Ryo. She chooses Souma.
Making Love in All the Wrong Places: Souma and Ryo have had some "fun" in a lot of public places, including a ship, pool, park, forest, ferris wheel, and even a restaurant.
Modesty Towel: Souma during the Shower of Love attempt. Ryo was full nude.
Mr. Fanservice: Souma, Jun, and Yuki. There's a reason this is considered hentai for girls.
Ms. Fanservice: Ryo Fujihashi is a fit young woman with large breasts. She's also been nude more times than Souma has.
Mr. Vice Guy: Souma is a firefighter that has saved numerous people from fires, apprehended an arsonist that was strangling Ryo, helped a family get their car out of a ditch, "rescued" his own love rival along with Ryo from carnival monsters, and is a very reliable and dependable boyfriend to Ryo. He is however quite perverted and easily turned on by Ryo.
Muscles Are Meaningful: Souma is ripped and also incredibly strong and was able to subdue an arsonist strangling Ryo by grabbing him, lifted up both Ryo and Rei Hidaka and ran carrying them both, lifted a car out of a ditch and the strength and stamina he gets from his training is one of the factors in him being so good at sex with Ryo. Justified as in real life a lot of equipment firefighters wear or use weigh over a hundred pounds and they also have to carry people out of burning buildings.
My God, What Have I Done?: Souma in a state of anger over Ryo pretending to Rei's girlfriend ended up raping her. When Ryo apologized, he came to his senses and made this reaction. Thankfully it was resolved peacefully.
Never Gets Drunk: Souma can hold his liquor quite well, unlike Ryo who easily gets hammered. Justified since larger muscles can give you a higher tolerance for alcohol.
Nice Guy: Souma is a fun loving individual. He gets along with his friends and helped a family with their car when it was stuck in a ditch. Plus he helps "save" his own love rival from carnival monsters. He can however be a bit aggressive during sex.
Office Lady: Ryo works as one at a cosmetics company and is one of it most valuable employees along with Rei.
Official Couple: Souma Mizuno and Ryo Fujihashi.
OOC Is Serious Business: Normally Souma is pretty laid back and friendly and even when he raped Ryo in the third chapter and first episode of the anime, it wasn't completely malicious and Ryo felt more annoyed than threatened. However when Ryo pretended to be Rei's girlfriend to get another girl off his back, Souma raped her again, only even more aggressively and angrily. Ryo could tell she really upset Souma and felt scared. Thankfully it was resolved and even Souma showed remorse for it.
Porn With Plot: It's the story of two childhood friends who start to realize their feelings for each other and start a relationship, while having lots of sex in the process.
Real Men Eat Meat: Souma loves steak and hamburgers.
Reality Ensues: Rei had no chance to rekindle his relationship with Ryo because he broke her heart eight years ago and she's already got a new boyfriend that's completely devoted to her. It also helps that her boyfriend's a well-endowed Sex God that's really strong.
- See Muscles Are Meaningful for why Souma, Jun, and Yuuki are so muscular.
Rescue Romance: The story begins when Souma rescues Ryo from a fire.
Right Behind Me: Souma overhears why Ryo wants to be with him when she discusses it with Rei.
Sex God: Souma can make Ryo orgasm without penetrating her. Ryo even claims she could come just by feeling Souma inside her and made her come twice during sex. Even when Ryo is at her limit, Souma usually has a lot more energy to spare due to his massive strength and stamina. Through chapter 138 to 140, the two had sex all day long, and while Ryo passed out from all the sex, Souma still had so much stamina he started to lift weights like it was nothing.
Sex Is Good: Nearly after every arc, Souma and Ryo's love grows stronger and ends with sex.
Shower of Love: Souma attempted this once with Ryo but a blackout prevented Souma from following through with it. Though it wasn't consensual, it's implied Ryo wanted it to happen.
Single Woman Seeks Good Man: Ryo wants to be with Souma because unlike with Rei, Ryo is allowed to be herself when with her childhood friend.
Single-Target Sexuality: Souma gave up womanizing when he got to be with Ryo and has shown no interest in other women (though he did lie about seeing a pretty girl but that was so Ryo and his sister could hang out).
Small Role, Big Impact: The arsonist that was apprehended by Souma in chapter 9 is implied to be the same one that burned down the apartment Ryo was living in as he is briefly seen in chapter 2, forcing Ryo to stay with Souma which started the story.
Taking the Bullet: While rescuing Ryo from the burning apartment, a cabinet falls during the fire and Souma shields Ryo from it with his body. Thanks to his endurance, he's only left with a massive bruise.
Tall, Dark and Handsome: Souma.
The Immodest Orgasm: Ryo often screams after getting an orgasm. Souma even suggested they get a soundproof house so she doesn't have to hold it in while they were house hunting.
The Power of Love: Somewhat downplayed. Souma was already a sex god with his strength and stamina and big penis but during episode 8 of the anime when Ryo finally admits she loves him during sex, he gained an extra burst of strength that resulted in Ryo having an orgasm. And Souma wasn't done.
Toilet Seat Divorce: The reason why Rei broke up with Ryo and broke her heart eight years ago is because she wanted to go to the same university as him. That's it.
Two-Person Pool Party: Episodes 6 to 7 in the first season anime and chapters 30 to 31 in the manga.
Unkempt Beauty: Male example. Souma combs his hair and dresses nicely and prepares a fancy meal to hopefully one-up his rival, Rei. Ryo's response is to mess up Souma's hair back into its spiky self, showing that she likes him the way he is.
Unrequited Love: Souma had to deal with this for ten years until he finally got his Relationship Upgrade with Ryo.
Victim Falls For Rapist: Very rare justified example. Despite having raped Ryo and a lot of non-consensual sex scenes, Souma was also a dependable guy who saved her from a fire that burned her apartment, gave her a place to stay, helped her get her life back on track after the fire, rescued her from an arsonist strongly implied to have been the one who set her apartment on fire, and once he becomes Ryo's boyfriend, incredibly loyal. It also helps that he is really really good at sex. Is it any wonder she fell in love with him?
Women Prefer Strong Men: Ryo chose Souma, a very muscular man and her childhood friend, over Rei, her ex-boyfriend. To be fair, Souma is a loyal and loving boyfriend and Rei broke her heart eight years ago when he broke up with her.
Workout Fanservice: Both the anime and manga have scenes where Souma, Izumi, and Jun workout while shirtless.