Aika Minase carries a deep emotional wound from a past relationship in which her ex-boyfriend only ever wanted her body for his own convenience. Because of that pain, she struggles to trust physical intimacy, even with someone who truly cares for her. Her childhood friend and current boyfriend, Rui Tsuzuki, knows about the scars she carries. Wanting to protect her, he has held himself back completely for the six months they have been dating, never once pushing her beyond what she is ready for. But Rui has a secret. After Aika falls asleep each night, he quietly showers her with the affection he keeps restrained during the day, whispering his love and gently caressing her while she remains unaware. This is a tender yet passionate story of a devoted boyfriend whose overwhelming love and possessiveness spill over in the quiet hours of the night, and of the healing that may finally reach Aika's wounded heart.