Neupui Neoege
Eun-Woo, who is quiet and timid, can't trust people because of the mental wounds he got from his partner, Seung-Han. Only after hearing that Seung-Han has graduated, he decides to return to school. In comes freshman Jae-Ho. Whenever Eun-woo looks at Jae-Ho, who is popular and handsome, he is reminded of Seung-Han and wants to distance himself, but Jae-Ho, who is interested in Eun-Woo, keeps being kind to him. Seung-Han, on the other hand, also didn't forget Eun-Woo, and when he heard from his friend about Jae-Ho, he immediately went out to find Eun-Woo..
(Source: Lezhin, translated)