Reiko is a mother who dotes on her son. She wants to remain in love with her son Shota even when he grows up, so she invites him out on a date, but her annoying son is cold and avoids her. Then, when she secretly looks at the smartphone Shota left behind, she finds a reservation for a boob pub. She can't stand the idea of her beloved son doing naughty things with someone else. Wanting to stop this somehow, Reiko comes up with a secret plan to work at the boob pub herself...