When a coworker Rinko turned down eight years ago asks her out to dinner, Rinko's friends convince her that he’s planning on proposing.
Rinko, Koyuki and Kaori go to a live show and Kaori recognizes the guitarist. Rinko decides to throw herself into work, but she gets some bad news.
Rinko gets depressed when she realizes that she knows basically nothing about KEY. Koyuki meets a salaryman who is exactly her type in every way.
The whole city is in Valentine’s Day mode and Rinko can’t stand it. Koyuki tells Rinko and Kaori about Marui.
Rinko meets a tall, handsome and nice bartender and immediately thinks he might be the one. Kaori and Koyuki resolve to never see Ryo and Marui again.
She’s just started seeing Okada, but Rinko’s already thinking about wedding bells. Kaori signs up to a matchmaking service.
With work hitting a dry spell, Rinko reluctantly accepts a job writing the screenplay for a TV drama set in a small North Izu town.
When they find out what happened between Rinko and Hayasaka, Rinko’s friends get excited. Kaori has something important to tell Ryo.
Things are going amazingly well with Rinko’s new relationship. Kaori makes a decision. Koyuki does something that she knows is wrong.
Rinko realizes that she might have feelings for KEY, too. Kaori tries to move on, but Ryo pays her a visit. Koyuki bumps into Marui.