Ignored by her family and feeling that she has no place at home, Satsuki also finds herself unable to refuse every tedious PTA chore. Her gray routine brightens when a newly appointed teacher, Saji, arrives. She begins longing for the monthly PTA meetings as her attraction to him grows. Though she knows the affair is wrong, they kiss again and again, and the more she tries to suppress her feelings, the hotter and more uncontrollable her desire becomes—leading to a secret affair and creampies.