Yakyuu-bu no Hino ni Koi wo Shita

Yakyuu-bu no Hino ni Koi wo Shita summary:

"If I'm going to fall in love, I definitely want it to be with a guy who's as dazzling and charming as a prince!" With that ideal in mind, Risa encounters Hino, a classmate who's on the men's baseball team at school, and she sees a surprising side of him. Ever since that day, Hino has made her heart race, despite him having zero delicacy, being singlemindedly focused on baseball, and being the total opposite of a prince...?! This is a story of unexpected and frantic puppy love over a guy who otherwise really irritates her!
Source: Kodansha