Iroha's daughter was worried about her boyfriend. She has a kind personality, but she is indecisive and weak-willed, and she is unhappy that she is not manly. The day she has such dissatisfaction, she explodes. Her boyfriend Kotetsu is abused by her strong-willed heart. Kokoro leaves Kotetsu and leaves. Iroha feels sorry for Kotetsu, who is extremely depressed, and tries to cheer him up. At that time, Kotetsu tells her that she grew up in a family without a mother since childhood and has never known her mother's love. Kotetsu's kind personality, being responsible for her daughter's cursing, not knowing her mother's love, and all kinds of emotions are mixed together, and Iroha overflows with her motherly nature toward Kotetsu.