Daiki Matsuzaki is said to be a candidate for the ace pitcher of the baseball team, but due to a trauma caused by an injury, he can no longer throw the ball. A younger childhood friend, Yuri Nanami, stands up to help Matsuzaki. [Onii, you pushed yourself too far. That's why I'm going to pamper you!] With advice from senior manager Suzumori Satsuki, Yuri supports Matsuzaki, sometimes by helping him with practice and sometimes by giving him skin-to-skin contact. Yuri and Matsuzaki are gradually drawn to each other, but for both of them, both love and baseball are important... However, both love and baseball are important to both of them... The clumsy and sweet coming-of-age of these two is about to play ball!