Shizuku Mizutani  

Dry Ice, Mitti, Study Bug, 水谷 雫

The main character in the story is Shizuku, a high school student who initially only focuses on academic success and achieving top grades. She doesn't have any romantic interests or connections with others at first. However, when she meets Haru Yoshida while delivering class printouts to him, her perspective changes as she begins to experience new things outside of studying. Through her interactions with Haru, Shizuku discovers emotions and feelings that she never knew existed before.