Summer Night Lupine!

Cha-Yun likes his childhood friend, Kim Seo-Jin. He's tried hard to avoid it, but Seo-Jin is always by Cha-Yun's side. As his feelings for Seo-Jin grow, Cha-Yun steals a kiss from Seo-Jin's lips every night... I want to touch you when I see you. It's summer now, will I be able to bear it?

(Source: BOMTOON, translated)

Note: Chapter count includes 5 extras.