Hatsuharu ga Saku

Yuzu Nishino was all pumped to start her second year of high school, but as she begins her new school life, she meets a strange new classmate in Shinjou. At first, she had difficulty understanding Shinjou, but through seeing his kindness and reliability, she gradually begins to take an interest. What could this feeling be…?

(Source: Houbunsha, translated)