From the creator of the surprise-hit romantic comedy Domestic Girlfriend! High school student Eiji is in love with Aki, the head of the tennis team, but he is unable to ask her out. Another student, Yuki, discovers his obsession with Aki, and promises to help him get closer to her…but Yuki’s help comes at a cost, and soon, the analytical, strategic Eiji finds himself deep in the messy turmoil of emotion…
Seiji Utsumi was satisfied with just gazing at his beloved Shou-sempai from afar. But when his classmate, Yuki Kurokawa, finds out about his crush, she pushes him to take action, and his one-sided love starts moving rapidly! While at the tennis training camp, Utsumi and Kurokawa end up getting locked outside for a night. While spending the night with each other, they realize their feelings have finally aligned. But will some unexpected actions by Shou-sempai, Utsumi's first crush, send Utsumi and Kurokawa back to square one? And what shape will Onuma's one-sided crush on Utsumi take next?!