Asahi Unowasa, a student seated in front of Azusa Ootani, embodies the essence of 'naive' perfectly. Bright and radiant like the sun, Asahi captivates Azusa's heart. Despite realizing he isn't the sole admirer of Asahi, Azusa grapples with jealousy over others' affections. A simple confession shifts their relationship from close friends to romantic partners. Haunted by the memory of Asahi's initial reaction, Azusa devises playful schemes to rekindle that genuine expression of emotion once more.