Huigu

Dreaming of a happy family with his fiancée, Hui-Kyung, Lee Yoon-Woo moves to a quiet, rural village where he has no connections. But one day, Hui-Kyung leaves home, leaving only a short text message saying goodbye. Abandoned by his fiancée and struggling to adjust to his new school, Yoon-Woo is struggling when her younger brother, Chae Jeong-Min, his first student and a friend from their college days, shows up...

*"Hello, teacher. It's been a while."

"Oh, not teacher... Should I have called you brother-in-law?"*

Despite Yoon-Woo's protests, Jeong-Min invades his precious home, which he hadn't even cleaned, fearing any trace of Hui-Kyung would disappear. He then rummages around, proposing to live together...

"I have no one to turn to, so I'm just chasing after my ex-girlfriend who left me."

Yoon-Woo and Jeong-Min cannot refuse, but will their cohabitation be ok?

(Source: Ridibooks, translated)