Kasumi, who remarried her husband who was a year away, had a secret in her family. It is that he often invites another man while his family is away and has a physical relationship. One day, unfortunately, it gets caught by Shota's breath. Shota was furious when he witnessed the betrayal of his esteemed father, and planned a rehabilitation training for his mother-in-law called Misogi. Kasumi obeyed the metamorphosis command of her breath with all her heart that she didn't want her husband to know, but while accepting the shameful punishment, sexual stimulation and pleasure that she had never experienced began to sprout.