Yin and Yang Series/Characters

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Keroro Gunso fanfiction Yin And Yang by author jlucydaisuke is filled with so much characters that a separate page is necessary for all the tropes they have. Also, it's a good reference sheet for notable characters.

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Kirere

• Artificial Alien: The result of Kururu splicing his and Giroro's genes together.
• Berserk Button: Don't call her stupid.
• Cheerful Child
• The Creepy Yellow Guy and Gruff Red Guy's Cute Pink Daughter
• Girlish Pigtails: Has these in her human form.
• Has Two Daddies: Her genetic donors and parents, Kururu and Giroro.
• Oblivious to Love: Completely clueless to Tororo's massive crush on her.
• Tyke Bomb: Created to be this, but turned out to be a failure.
• Wrench Wench

Romama Platoon

Romama

• Bishounen
• Eyes of Gold
• Hellish Pupils: He's got slitted pupils. Makes for very effective glares.
• Hidden Heart of Gold
• It's All My Fault: Much guilt, for being indirectly responsible for crashing the platoon onto Earth, and for letting Nikolai have too much power and turned into a Complete Monster.
• Majorly Awesome: Was a Major when he was in the military.
• Real Men Wear Pink: Romama is a vegan, does ballet, and loves cute animals. He's also known as the 'Demon Major' and will kick your ass if you get on his nerves.
• Silent Snarker: When he was mute due to physical and mental trauma, and recovering.
• Teen Genius: His fighting prowess.
• Windows of the Soul: Dororo can understand what he's thinking by the look of his eyes, and thus his interpreter when he was mute.
• Wise Beyond Their Years: Pretty mature, especially when compared to the rest of the cast...
• Wooden Katanas Are Even Better: Ties with Dororo, who uses a real, steel katana, using a wooden one.

Chunini

• Affably Evil: Manipulates people with a cheerful smile on her face.
• The Hedonist
• Hidden Depths
• Lipstick Lesbian
• Odango Hair: Well, they aren't hair buns, but buns nevertheless.

Lupapa

• Blade on a Stick: Her weapon
• Green Eyes
• Kuudere: Type 2. Cold and aloof on the surface, warm and kind once you get to know her, goes dere for Dororo.

Fujuju

• Adorkable
• Badass Bookworm: Extremely intelligent, loves a good book, and can bomb you to pieces.
• Child Prodigy: He was one.
• Mistaken for Gay: Due to his soft and gentle manner. People were surprised when they found out his date was female.
• Pyromaniac
• Technicolor Eyes: His swirly Green Eyes.

Rokiki

• Character Development
• He's Back: After turning into an alcoholic and almost resigning himself to a loveless marriage, Rokiki takes a break to go on a journey to look for answers to his life. When he comes back, he's enters with a bang and back to his badass self.
• Dark-Skinned Redhead: His human form.
• Dark and Troubled Past
• Drowning My Sorrows: Took to drinking as a coping mechanism to being stranded on 20th century Earth, and past issues. He got better eventually.
• I Need a Freaking Drink: This a lot.
• Jerkass Woobie: Your mileage may vary, but Rokiki is pretty much this after his Heel Face Turn. At least until he goes out for his journey of self-discovery...
• Last of His Kind: Subverted. Rokiki first appeared as the last member of the Sankaku Tribe, only to discover that survivors remain scattered throughout the universe, and he's got a few descendants right here with him...
• Purple Eyes

Pekoponian Friends

Haruki Suzuyama

• Adult Child: Being around Kirere doesn't help this.
• Only Sane Man: Compared to everyone else...yes.
• The Slacker
• Secretly Wealthy: He's the heir to a large business and fortune, yet lives as a simple bill-dodging mechanic.
• Unfazed Everyman

Nikolai Kezanstav

• Blond Guys Are Evil
• Blue Eyes
• Redemption Equals Death: Kills himself to do so.
• Used to Be a Sweet Kid

Other Aliens

Botan

• Defrosting Ice Queen: After meeting the Keroro Platoon and dating Fujuju
• Emotionless Girl
• Last of Her Kind
• Older Than They Look: Much, much older than she looks.
• Shrouded in Myth
• The Stoic
• Time Abyss
• Time Traveler
• Timey-Wimey Ball: She's pretty much in charge of in charge of keeping it stable.
• White Haired Beautiful Woman

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