Yuri lives with her husband and his son from a previous relationship, Nobuo, but ever since she arrived, Nobuo has shut himself away in his room. Feeling responsible, Yuri sacrifices her own body to seek help from Nobuo's homeroom teacher and cousin, pleading with them to bring him out. Throughout this process, intense erotic encounters unfold, filled with sweat and bodily fluids, drawing the two into an even deeper connection. A poignant yet passionate story where warmth and desire intertwine.