TV-Series
Description
Mafuyu Shiina is a first-year student at Hekiyou Academy who serves as the treasurer of the student council. She is the younger sister of Minatsu Shiina, the council's vice-president, creating a notable familial dynamic within the group. With a birthday on February 22nd, Mafuyu stands 162 centimeters tall. Her appearance is characterized by long, straight blonde hair, often tied with a ribbon, and blue eyes, contributing to what others perceive as a delicate and youthful look.

On the surface, Mafuyu appears extremely reserved, kind, and shy. She has a pronounced fear of males, a condition stemming from her attendance at an all-girls middle school, which was influenced by her sister's negative views. Because of this timid demeanor, fellow council member Ken Sugisaki initially believes she would be the easiest of the girls to romance. However, this passive exterior belies a much more complex and strong-willed personality. When comfortable or passionate about a subject, Mafuyu reveals her true feelings and proves herself confident in her interests, not easily swayed by the teasing of her peers.

Her motivations are largely driven by two secret passions that define her private life. Mafuyu is an avid gamer, frequently seen playing a handheld console and dedicating significant time to role-playing games, sometimes at the expense of sleep. She also writes detailed game walkthroughs, such as for a title she refers to as Chasseur Monstre. Her other major interest is Boys Love literature, also known as yaoi. She runs a popular website under an alias called Internal Organs Explode where she sells her own BL works. Much of her creative writing features her real-life classmates, often casting Ken Sugisaki and a spectacled student named Yoshiki Nakameguro as the central romantic pair. This hobby is a core part of her identity, and she pursues it with enthusiasm and without shame, arguing passionately about it with those who question her. She sees her interest in BL as a way to process and understand her own feelings about relationships and the world around her.

Within the student council, Mafuyu plays a quiet but significant role. Despite her claim that she has no friends outside of the council members and her older sister, she forms a crucial bond with Ken Sugisaki. Their relationship begins on a complex footing; while Ken aims to build a harem, Mafuyu is initially indifferent or even negative towards him because of his lecherous nature. She is often the recipient of his argumentative side as they clash over differing views on love, yet they share a common ground in their love of niche, erotic media. Over time, a deep mutual respect develops. Mafuyu shows great empathy, and there are instances where she overcomes her fear of men to assist Ken, such as when she helps him after he collapses from overwork. In turn, Ken participates in her hobbies, once writing an entire BL fanfiction for her starring himself. Their history predates the council, as they first met online under her gaming alias Yuki, where she trained him using unconventional methods that shaped his personality.

Her key relationships extend to her family. Mafuyu acts as a mediator between her sister Minatsu and their mother, following family tension caused by their stepfather. Her development throughout the story is marked by her growing courage to confront her fears and express her emotions openly. She eventually reveals that she has been in love with Ken since they first met in junior high, when he fell asleep on a bench in the snow and she, despite her fear of boys, brought him somewhere warm. In a significant act of personal growth, she becomes the first member of the council to confess her romantic feelings for him, though she clarifies that she does not necessarily desire a traditional dating relationship, but simply needed him to know. This development reveals a resilience beneath her fragile facade, showing her capacity for decisive loyalty and emotional honesty that her initial shy appearance would never suggest.
Cast