Synopsis

Nomura Hiro is an office worker enjoying newlywed life in a small apartment with his wife, Sae. However, during an argument with Sae, Hiro meets Shiraishi Miko, a new neighbor who has just moved into the apartment next door, setting off a chain of events that dramatically changes his everyday life.
 
Frequently stopping by to help with household chores and care for him when needed, the devoted Miko gradually becomes a source of comfort for Hiro. But there is a startling truth behind her kindness: Miko is actually a 61-year-old woman who believes herself to be a “16-year-old beauty.”
 
After falling in love with Hiro at first sight, Miko begins taking increasingly extreme actions in her determination to win him over.