Changes of Heart, Volume 1 (Changes of Heart #1-4)

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'll hurt one of her closest friends. And to make matters worse, her ex wants to patch things up...? Koyori needs to figure out what she wants, before she loses it all.