高良くんと天城くん

Takara-kun to Amagi-kun

Takara Shun, a high school student who belongs to a popular group in the class, and Taichi Amagi, a pure boy who is not a conspicuous type but is liked by people, realize their love for each other. Even though they start dating in secret, it is difficult to be honest. (Source: Kadokawa, translated)