Junta Hayami, known by his childhood nickname "Tonta," holds significant importance to the protagonist. His past reveals a marked transformation; he was once an overweight child with messy hair obscuring his eyes, characterized by shyness and social difficulties. During this time, a bond formed with the protagonist over shared interests, particularly the fictional video game Cat Ranger. A pivotal moment occurred when he overheard the protagonist state a preference for dating an "athletic guy who can beat the boss." This motivated him to embrace baseball and undergo rigorous physical change, evolving into a tall, muscular figure with tan skin and short black hair. His athletic skill earned him recognition as a "rookie baseball star." Despite this outward transformation, core traits remained, including a persistent fear of cockroaches. His demeanor is generally calm and kind, yet he possesses a strong protective instinct, particularly toward the protagonist and friends. He willingly risks repercussions to his sports career to defend them. Sincerity and occasional timidity surface in personal interactions, especially regarding his longstanding, unrequited romantic feelings for the protagonist, which persisted authentically. A critical development involves confronting a dangerous stalker threatening the protagonist. Drawing on his own past traumatic experiences, he moves beyond his fears to actively protect her, signifying a shift from passivity to courageous action. This act underscores his growth and commitment to safeguarding those he cares about, despite personal vulnerabilities. His journey reflects maintaining genuine emotional connections while adapting to changed circumstances, steadfastly upholding loyalty and care.