Three-time divorcee Towako realizes that she needs the help of one of her ex-husbands to figure out a password on her late mother’s laptop.
Hassaku, Kataro and Shinshin all have personal encounters with other women. Later, Towako throws a sukiyaki party at her place with her three exes.
Towako upsets an employee when she rejects the plan of a talented young architect. Kataro stresses over whether he should enter a new relationship.
Sara takes a more aggressive approach in pursuing Hassaku. Towako gets Kagome to accept a dinner invitation from a neighbor, but she doesn't show up.
Towako figures out that her employees are preparing a surprise birthday party for her. Later, a client and fellow three-time divorcee proposes to her.
With Towako unreachable, her father invites the three exes and the women they’ve each become entangled with over to her apartment for dinner.
Now living alone after Uta moves out, Towako meets a mysterious man at the park. Meanwhile, Shirokuma Housing’s owner attempts to sell the company.
Despite calling for Towako to step down at work, Takanashi tells her that he wants to continue their friendly relationship in their personal lives.
Takanashi proposes to Towako and invites her to move to Malaysia with him. Shinshin tries to stop her from what he believes is a serious mistake.
Towako finds an unsent love letter that her mother wrote before she divorced her father. Uta says she wants to meet the person it was written to.