TV-Series
Description
Hiroto Suwa is a central figure in the friend group at the heart of the story. He is a high school student who stands out for his tall and athletic build, with a height of 185cm, chestnut brown hair, and black eyes. He is an avid member of the school's soccer club, and his energetic nature is a defining aspect of his daily life.

His personality is chiefly characterized by an extroverted, happy, and easy-going demeanor. He is often the most outgoing member of his circle, known for his sense of humor and occasional gluttony, which becomes a lighthearted trait his friends recognize. More significantly, Suwa is defined by a profound sense of kindness and selflessness. He is the first person to welcome the transfer student Kakeru Naruse into the group, an act that demonstrates his open and friendly character. Beneath his cheerful exterior, Suwa possesses a deep internal conflict, as he harbors a secret crush on his friend, Naho Takamiya, while being fully aware of her growing feelings for Kakeru.

Suwa's primary motivation throughout the narrative is his desire to rectify a future filled with regret, specifically the death of Kakeru. After receiving a letter from his future self, he learns that in an original timeline, he eventually married Naho following Kakeru's suicide. However, this future Suwa is consumed by guilt, believing that he took advantage of Naho's grief to start a relationship with her. Driven by this knowledge and his inherent altruism, Suwa makes a conscious decision to suppress his own romantic feelings. He dedicates himself to acting as a supporter for Naho and Kakeru, actively encouraging their relationship and pushing Kakeru to join the soccer club, all in an effort to change the tragic outcome and ensure his friend's happiness, even at the cost of his own.

In the story, Suwa plays a pivotal role as both a catalyst and an emotional anchor. He is often the one who initiates group activities and helps Kakeru integrate into their circle. His key relationships are complex. With Kakeru, he is a loyal and encouraging friend who strives to make him feel included and valued. With Naho, he is a supportive confidant who hides the depth of his own feelings to prioritize hers. His relationships with other friends like Saku Hagita and Takako Chino are also notable, as they often serve as observant supporters who recognize the sacrifice Suwa is making. His role evolves from a seemingly typical, friendly athlete into the emotional core of the group, whose quiet decisions drive much of the plot.

Throughout the series, Suwa undergoes significant development. He transitions from a boy with a passive crush to an individual who actively makes a painful, mature choice to sacrifice a potential future with Naho for the chance to save a friend's life. This development is marked by his struggle with jealousy and his ultimate decision to adhere to the instructions from his future self, not to confess his feelings and to focus on saving Kakeru. His journey highlights a quiet, steadfast heroism.

Regarding notable abilities, Suwa does not possess any supernatural or extraordinary skills. His greatest ability lies in his emotional strength and resilience. His talent on the soccer field is acknowledged, but it is his exceptional capacity for empathy, self-sacrifice, and unwavering support for his friends that makes him a remarkable character.