KimiKiss

From left-to-right: Futami Eriko, Sakino Asuka, Satonaka Narumi, Shijo Mitsuki, Aihara Nana, Mizusawa Mao, and Hoshino Yumi

"Kiss! Kiss! Koishiteru yo~!"

—Aozora Loop (Blue-sky Loop), Kimikiss: Pure Rouge OP

Kimikiss (キミキス / "Kissing You") is a dating simulation game for the PS2. Released by Enterbrain in 2006, Kimikiss has become a media franchise, including manga, Light Novel, and has been made into an anime as of 2007-2008 entitled Kimikiss: Pure Rouge.

Tropes used in KimiKiss include:

Adaptation Distillation - Arguably, Kimikiss: Pure Rouge.
Alliterative Name - The title is sometimes rendered as Kimi Kiss. Also Mizusawa Mao.
Cannot Spit It Out - Kouichi and Yumi, even after they got hooked up as witnessed by Megumi, much to her chagrin.
- Also a major (if brief) plot point in Mitsuki's route of the game owing to her Arranged Marriage.
Canon Foreigner - Eiji Kai
Choose Your Own Adventure - Sort of. The Kimikiss: Various Heroines manga focuses on Kouichi hooking up with one of the girls for a good 7-8 chapters. Afterwards, the entire story is reset and another girl is chosen, so fans of certain girls can just choose to read a certain set of chapters and nothing else.
- For the curious, here's the complete listing:
  - Mao - chapters 1-8
  - Asuka - chapters 9-17
  - Mitsuki - chapters 18-26
  - Eriko - chapters 27-36
  - Yumi - chapters 37-45
  - Nana and Narumi get their own special chapter detailing their innocent adventure into Les Yay territory. I wish I was making this up.
- This would later serve as the inspiration for the omnibus format of Amagami SS.
Derailing Love Interests - In the anime, Kouichi's relationship with Yumi gets derailed all thanks to Mao.
- Actually it's more of Strangled by the Red String.
Depending on the Writer: Pure Rouge Eriko vs. Various Heroines Eriko. Both are superficially the same person (same name, same appearance) and do some of the same things (paper airplane from a failed test, experiment in love), but their personalities are fundamentally different.
Detractor Nickname - After the bittersweet end for one of the main characters in the anime Kimikiss: Pure Rouge, some disappointed fans took to calling it "Kimikiss: Pure RAAAAAAAAAAAAGE~!!!"
First Girl Wins - Mao (In the anime, for Kouichi)
Gargle Blaster - The Berry-Berry Ramen Futami eats at a ramen shop in episode 8.
Hey, It's That Voice! - Mamiko Noto as the soft-spoken Ojou, Shijo Mitsuki.
Last-Minute Hookup - No, seriously, it's literally last minute.
Love Triangle - Yumi-Kouchi-Mao and Eriko-Kazuki-Asuka in the anime.
Red Oni, Blue Oni - Sakino Asuka and Futami Eriko in the Pure Rouge anime.
Rule of Drama - Midway through the anime series, all of the principal characters are happily together with the ones they love... Awwwwww~ Now what could possibly go wrong in this setup?
Spiritual Successor - Amagami
The Tease - Mao likes to do this a lot with Kouichi. This was removed in the anime.
Tsundere - Megumi Kuryuu towards Hiiragi Akira.
Victorious Childhood Friend - Kouichi initially went out with Hoshino before realizing his feelings for Mao.
What Is This Thing You Call Love? - Futami Eriko. She "experiments" on our protagonist to find out.
Zettai Ryouiki - When Mao and her classmates are in their maid uniforms.