Takuma Kakinouchi

Original Name (Japanese): 垣内 琢磨
Romaji Name: Kakinouchi Takuma
Nicknames: N/A
Series: Boku wa Imouto ni Koi wo Suru
Age: Approximately 16-19 years old
Weight: Unknown
Height: Unknown
Date of Birth: September 13
Blood Type: A
Horoscope: Virgo
Health Condition: Heart disease, likely won’t live past 20 years old


Takuma Kakinouchi is a kind and caring individual who is deeply in love with his childhood friend, Mayu Taneda. Despite his poor health and the fact that he may not live past the age of 20 due to a heart condition, Takuma maintains a positive outlook on life and cherishes the time he has with Mayu. He is described as selfless, putting Mayu’s happiness before his own and willing to make sacrifices for her.


Takuma has been in and out of the hospital since he was a child, unable to participate in normal activities like going to school or playing basketball. This isolation has made him appreciate the time he can spend with Mayu, who has been a constant presence in his life. Mayu made Takuma promise that they would marry when they turned 20, and their love has grown stronger over the years, despite the uncertainty of Takuma’s future.

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Takuma is described as having a slender, fragile appearance due to his medical condition. He has short, light-colored hair and gentle features, often depicted with a serene expression on his face. His appearance reflects his delicate nature and the challenges he has faced throughout his life.


As a character with a heart condition, Takuma’s physical abilities are limited. However, he has a strong emotional intelligence and the ability to connect deeply with Mayu, which is an important part of his character. His determination to make the most of his time and cherish his relationship with Mayu is a testament to his inner strength and resilience.


Takuma Kakinouchi is a character from the manga and anime series “Boku wa Imouto ni Koi wo Suru” (I’m in Love with My Little Sister). He is the main male protagonist whose love story with Mayu Taneda is the focus of the series.

Takuma Kakinouchi – FAQ

Here are 6-8 FAQs about Takuma Kakinouchi from “Boku wa Imouto ni Koi wo Suru”:

Who is Takuma Kakinouchi?

Takuma Kakinouchi is the male protagonist of the anime/manga series “Boku wa Imouto ni Koi wo Suru”. He is a high school student who falls in love with his younger sister, Riku Kakinouchi.

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What is the relationship between Takuma and Riku?

Takuma and Riku have a close sibling relationship, but Takuma secretly harbors romantic feelings for Riku, which creates a central conflict in the story. Despite the taboo nature of their potential relationship, Takuma struggles with his growing love for his sister.

What are Takuma’s personality traits?

Takuma is portrayed as a quiet, introspective young man. He is intelligent and responsible, but also struggles with feelings of guilt and shame over his incestuous desires. Takuma cares for Riku and tries to protect her, even as he is torn between his love for her and the social taboo of their potential relationship.

How does Takuma’s relationship with Riku develop throughout the story?

As the story progresses, Takuma and Riku’s relationship becomes more and more complicated. Takuma tries to suppress his feelings, but they get stronger and stronger. There are moments of intimacy and affection between the siblings that intensify Takuma’s inner struggle. The story explores the moral and emotional complexities of their relationship.

What is Takuma’s role in the overall plot of the series?

As the male protagonist, Takuma is at the center of the main narrative. His conflicted feelings and choices drive much of the action as he navigates the ethical dilemma of loving his sister and the social taboos surrounding their relationship.

How is Takuma portrayed by fans and critics?

Takuma is a complex and controversial character, with fans and critics offering varying perspectives on his role and actions. Some view him sympathetically as a tragic figure caught in a difficult situation, while others are critical of his incestuous desires. His character sparks discussions about the ethics of sibling relationships and the portrayal of taboo love in anime and manga.