After being dumped by her boyfriend, Koyori went to her longtime friend Hijiri's house to drink away her sorrow...and ended up spending the night with him! Not only that, he tells her he loves her—and she's not sure how to reconcile the new development with someone she's known since they were kids. After all, the stakes are high—if things don't work out, she could risk losing it all. And to make matters worse, her ex wants to reconcile...? Koyori needs to figure out what she wants, before she loses it all.
Childhood friends, Hijiri and Koyori are now officially together. They moved in together, got through their first big fight, and strengthened the bond between them. While they’re busy with work and taking a hot spring trip on Hijiri’s first birthday as a couple, Koyori’s ex-boyfriend makes the announcement that he’s getting married! Which gets the couple thinking about their future.