TV-Series
Description
Gakuto Yuzuki is the youngest of the four Yuzuki brothers. He is a first-grader, having just entered elementary school at the beginning of the story, and is six years old. In terms of appearance, Gakuto is a short boy with pale skin and short black hair. His bangs fall across the middle of his face, reaching down towards his greenish-blue eyes, and his cheeks remain slightly chubby, reflecting his young age.

Gakuto is consistently described as being wise beyond his years, with many characters and observers referring to him as a little wise man. He is exceptionally intelligent and emotionally perceptive for a child his age, often considering the practical and emotional consequences of actions in a way that surprises those around him. For instance, when faced with an invitation for his family to attend a school open house, he does not simply deliver the notice. Instead, he worries about how taking time off might impact his oldest brother Hayato's demanding work schedule, creating more stress and obligations for him. This showcases his core personality traits: a deeply considerate and selfless nature, as he frequently tries to put the well-being of his older brothers, particularly Hayato, before his own desires. He is a reserved, polite, and studious child who rarely acts impulsively, trying to avoid being a burden to the family that works so hard to care for him.

The loss of his parents two years prior to the story's present has had a profound effect on Gakuto. As a preschooler at the time, he witnessed the immense pressure placed on his eldest brother, Hayato, who became the family's pillar, as well as the adjustments his other brothers had to make. A significant part of his motivation stems from a desire to ease that burden. He feels guilty about his own inability to contribute to the household chores in a meaningful way because of his small size and young age, and this fuels his determination to be as independent and trouble-free as possible. This sometimes leads him to keep his struggles, such as feeling lonely or having difficulty fitting in at school, to himself so as not to worry his family.

Within the family dynamic, Gakuto occupies a cherished role. His three older brothers, Hayato, Mikoto, and Minato, are all highly protective of him and often treat him like a baby, a fact he is quietly aware of and has complex feelings about. A notable bond exists between him and his third brother, Minato, who adores Gakuto and is particularly protective and doting toward him. Despite his young age, Gakuto often acts as a grounding presence for the more energetic and clumsy Minato. Crucially, Gakuto forms a significant and unique friendship with the family's elderly neighbor, Kojiro Kirishima. This relationship began when Kojiro, seeing Gakuto waiting alone, invited him into his home. Unlike Gakuto's brothers, Kojiro treats him as an equal, engaging him in adult conversations and period dramas, offering the boy an intellectual companionship he doesn't find elsewhere. Through this connection, Gakuto also befriends Kojiro’s grandchildren, including Waka, who becomes his classmate.

Gakuto undergoes subtle but meaningful development throughout the narrative. Initially, his need to protect his brothers manifests as secretiveness, as seen when he hides information about his school's visitation day to prevent Hayato from missing work. While well-intentioned, this secret causes internal distress and ultimately unravels, demonstrating that his brothers want to be there for him and that he does not have to face everything alone. His journey involves learning to accept help and support, realizing that his brothers find joy and meaning in being present for him, just as he wishes to ease their load. A significant part of his emotional world involves missing his deceased parents, with memories of them often surfacing in quiet moments. His emotional intelligence is itself a notable ability; he has a keen capacity to read the atmosphere of a room and sense the hidden worries of those around him. He also learns and enjoys playing shogi, which he was taught by his friend Kojiro. Despite his mature demeanor, he also possesses an active imagination and a quiet, observant nature that defines his perspective on the world.