Waiting for Spring manga volume 13 features story and art by Anashin.

Towa and Mitsuki are finally a couple, but Mitsuki feels like she needs to step up her game to make his heart race. She goes to the ever-composed Kyōsuke for help, and he suggests a surprise birthday party for Towa. However, when she brings her boyfriend to the party venue, she finds an even bigger surprise waiting for them both!