Athour Note And Meet the Cast
📣 Author’s Note: Welcome to the Ultimate Koi in Tokyo Cast Directory!
Dear Readers,
Before we dive into the chaotic, heartwarming world of Koi in Tokyo: A Strategic Kiss, I want to share the Official Master Character Directory.
Because this novel spans from their final year of high school through their university years, the profiles below reflect their starting statistics and their ultimate personal growth. Bookmark this guide to keep track of the birthdays, quirks, and hidden layers of our 17-character cast!
📊 THE COMPREHENSIVE CAST DIRECTORY
🌟 The Lead Pair
Komori Hyui
Age: 18 (at story start) |
Height: 182 cm |
Birthday: November 12
MBTI: INTJ (The Architect)
Likes: Black coffee, complex mathematics, absolute silence, order.
Dislikes: Loud noises, unpredictable variables, illogical emotional outbursts, sweet foods.
Character Arc: From Cold Calculation to Raw Vulnerability. Hyui begins as an emotionally detached robot who views life as an easy equation. Through Tomoya’s disruptive presence, he learns that human emotion cannot be calculated, eventually shedding his icy armor to fight for the girl he loves over corporate expectations.
Uemura Tomoya
Age: 18 (at story start) |
Height: 158 cm |
Birthday: June 21
MBTI: ENFP (The Campaigner)
Likes: Homemade meat buns, scrapbooking, tracking Hyui’s schedule, bright festivals.
Dislikes: Complex fractions, being ignored by Hyui, rainy days that ruin her hair.
Character Arc: From Blind Devotion to Empowered Independence. Tomoya starts as a clumsy girl whose entire world revolves around a boy who rejected her. While keeping her loving nature, she grows into a resilient, independent woman who finds her own career calling in nursing and earns the respect of everyone around her.
💔 The Rivals & Best Friends
Keita Kobayashi
Age: 18 | Height: 175 cm |
Birthday: August 30
MBTI: ESFP (The Entertainer)
Likes: Traditional Japanese cooking, crafting culinary tools, cheering loudly for Tomoya.
Dislikes: Hyui’s smug face, modern minimalist cuisine, seeing Tomoya cry.
Character Arc: Accepting Reality and Finding True Passion. Keita transitions from an overbearing, obsessive high school admirer into a mature, professional chef who learns to let go of his unrequited love with dignity.
Mizuno Rika
Age: 19 | Height: 168 cm |
Birthday: October 04
MBTI: ENTJ (The Commander)
Likes: High-end French cafes, playing tennis, perfect academic scores, classical literature.
Dislikes: Academic failure, messy environments, Tomoya’s illogical luck.
Character Arc: Humility and Genuine Self-Discovery. Used to getting everything through intellect and beauty, Rika experiences her first real rejection through Hyui, ultimately forcing her to lower her walls and find genuine fulfillment outside of superficial perfection.
Ryohei Tanaka
Age: 20 | Height: 185 cm |
Birthday: March 15
MBTI: ESTP (The Persuader)
Likes: Hardcore physical training, tennis court victories, buying gifts for Rika.
Dislikes: Lazy club members, losing a match, being ignored by Rika.
Character Arc: Softening a Hard Exterior. Ryohei evolves from a terrifying, drill-sergeant tennis captain into a deeply loyal and emotionally supportive partner who learns how to express genuine care without shouting.
Sahoko Ogawa
Age: 21 | Height: 162 cm |
Birthday: January 05
MBTI: INFJ (The Advocate)
Likes: Traditional tea ceremonies, playing the koto, classical art galleries.
Dislikes: Public scandals, broken promises, being used purely as a corporate tool.
Character Arc: Breaking the Golden Cage. Sahoko begins as an obedient, passive heiress willing to enter a loveless arranged marriage. She ultimately finds the courage to break free from her family’s demands to seek a life built on real love.
Saki Yamamoto
Age: 18 | Height: 160 cm |
Birthday: September 14
MBTI: ESTJ (The Executive)
Likes: Rock music, leather jackets, checking out Tokyo’s street food scenes.Dislikes: Arrogant honor students, anyone who treats Tomoya poorly, slow Wi-Fi.
Character Arc: The Steady Rock. Saki maintains her role as Tomoya’s grounded reality check, learning to balance her fierce, protective aggression with constructive life advice as they step into adulthood.
Hiroki Watanabe
Age: 18 | Height: 172 cm |
Birthday: December 02
MBTI: ISFP (The Adventurer)
Likes: Sketching urban Tokyo landscapes, indie video games, calm afternoon walks.
Dislikes: Aggressive confrontations, crowded subway trains, high-stress situations.
Character Arc: Finding an Inner Voice. Hiroki starts as a quiet follower in the high school trio but gradually builds the confidence to pursue his own creative path without hiding in the background.
Mizuno Ayano
Age: 16 |
Height: 155 cm
| Birthday: July 19
MBTI: ENTP (The Debater)
Likes: Social media trends, teasing her older sister Rika, finding family secrets.
Dislikes: Being treated like a child, boring family dinners, predictable outcomes.
Character Arc: Channeling Chaos into Maturity. Ayano evolves from a chaotic, mischievous younger sister looking for entertainment into a genuinely supportive family ally.
Yuma Takahashi
Age: 20
Height: 178 cm
Birthday: February 22
MBTI: INTJ (The Architect)
Likes: Flawless lab reports, competitive medical seminars, strong espresso.
Dislikes: Coming in second place, Hyui’s effortless genius, emotional distractions.
Character Arc: Overcoming Obsessive Rivalry. Yuma moves from a bitter, insecure academic rival who bases his self-worth entirely on beating Hyui into a collaborative medical professional who respects his peers.
Takeru Nishida
Age: 19
Height: 174 cm
Birthday: May 09
MBTI: ESFJ (The Consul)
Likes: Group mixers, karaoke nights, planning university festivals.
Dislikes: Awkward silences, heavy emotional drama, studying alone.
Character Arc: The Universal Glue. Takeru serves as the essential social bridge, learning to navigate highly explosive romantic rivalries while maintaining group harmony.
🏡 The Family Circles & Support
Uemura Hiroshi
Age: 48
Height: 165 cm
Birthday: November 23
MBTI: ISFJ (The Defender)
Likes: Slicing fresh sashimi, classic enka music, seeing Tomoya smile.
Dislikes: Natural disasters, arrogant customers, seeing his daughter heartbroken.
Character Arc: Learning to Let Go. A devoted single father who protects Tomoya fiercely, Hiroshi learns to trust her choices and steps back to let her build her own life in Tokyo.
Komori Masato
Age: 50
Height: 176 cm
Birthday: April 11
MBTI: ISTJ (The Logistician)
Likes: Successful quarterly corporate earnings, playing golf, traditional green tea.
Dislikes: Unfinished business projects, unexpected market drops, family insubordination.
Character Arc: Prioritizing Family over Enterprise. Masato transitions from a rigid corporate patriarch demanding his son take over the business to a supportive father who values his son’s medical aspirations and happiness above all else.
Komori Sachiko
Age: 45 |
Height: 156 cm |
Birthday: October 28
MBTI: ENFJ (The Protagonist)Likes: Hidden spy cameras, dressing up Tomoya, match-making schemes, sweet pastries.
Dislikes: Hyui’s cold attitude, a quiet household, failed romantic plots.
Character Arc: From Overbearing Puppeteer to True Supporter. Sachiko learns to channel her chaotic, boundary-crossing match-making energy into genuine emotional support, respecting the couple’s personal boundaries while remaining their biggest fan.
Komori Yuto
Age: 10 (at start) |
Height: 140 cm |
Birthday: September 05
MBTI: ISTP (The Virtuoso)
Likes: Advanced robotics, logic puzzles, copying his older brother Hyui.
Dislikes: Clumsiness, being forced to eat vegetables, admitting Tomoya helped him.
Character Arc: Softening a Sharp Mind. Initially a cynical mini-genius who mimics his brother’s coldness and mocks Tomoya, Yuto develops deep affection for Tomoya after she saves him during a health crisis, eventually becoming her secret helper.
Grandmother Komori
Age: 72 | Height: 150 cm
Birthday: January 20
MBTI: ESTJ (The Executive)
Likes: Early morning chores, perfectly pickled radish, country air.
Dislikes: Lazy city habits, modern slang, poorly swept entryways.
Character Arc: Recognizing Heart over Protocol. The ultimate traditional matriarch who views Tomoya as unfit for the family, she completely melts upon witnessing Tomoya’s unyielding work ethic and pure heart.
Sota Hayama
Age: 8
Height: 130 cm
Birthday: July 07
MBTI: INFP (The Mediator)
Likes: Picture books about space, drawing, Tomoya’s funny stories.
Dislikes: Hospital food, painful checkups, being lonely.
Character Arc: Finding Courage in Adversity. A fragile, cynical hospital patient who has given up on getting better, Sota finds his spark and will to fight his illness through Tomoya’s tireless emotional care.
Get ready for 1 chapters filled with forced proximity, high-stakes drama, and sweet romance. Grab your favorite snack, add this book to your reading list, and let’s dive into Chapter 1!
Happy Reading!
— The Author
