Manabu had a promising future in a prestigious baseball team, but his future was cut short when he suffered a serious injury during a game. Afterwards, his mother, unable to see him spending his days in desperation, calls for a helper, Kana, to help him return to his daily life. Manabu gradually becomes attracted to her as she has a kind smile and doesn't dislike anything. And each time he was led to ejaculate over and over again, enveloping his pent-up erect penis, his troubled heart was gradually healed.