Miya raises her son, Wataru, single-handedly. Perhaps because he is an only child, Miya tends to spoil Wataru too much, making it difficult for him to become independent, and she is troubled by this. However, Wataru has entered puberty and started to find Miya's affection annoying… One day, after being shown Miya's overbearing love in front of his friends, Wataru vents all his pent-up frustrations at his mother. They end up fighting, but living under the same roof without communication is unbearably stifling…
