Welcome Back, First Love.

Shiori Yamane leads a quiet, predictable life as an office worker, content with the steady rhythm of her days. However, her monotonous schedule gets shaken when she receives an invitation to her high school reunion. Despite the years that have passed, Shiori still feels like an outsider among her former peers, and she prepares to leave early. Instead, she's stopped by an unexpected encounter. Ryosuke Taguchi, once the school’s notorious delinquent, stands before her—completely changed from the boy with bleached hair and sharp edges she remembers. Now a sophisticated and composed man, Ryosuke’s sudden transformation leaves Shiori completely bewildered. As the two former outcasts reconnect, it becomes clear that Ryosuke’s polished exterior hides a deeper secret.