A hidden passion simmers beneath the surface, and a gentle touch is all Hikaru Kusakabe and Rihito Sajou need to set it free. Sajou, diligent and introverted, has yet to grow comfortable with such intense emotions for Kusakabe, leaving him prone to overthinking and doubt. Meanwhile, Kusakabe, direct and daring, holds back nothing when expressing his physical affection.
As Kusakabe shares his ambition of becoming a professional musician, Sajou works tirelessly toward college entrance exams. Their diverging paths cast an unspoken shadow over their relationship: with graduation approaching, the future of their romance remains uncertain. Still, their love keeps them warm through the harsh winter, offering hope that they will eventually find the answer to their shared but unclear tomorrow.