Gyosunimui Seongdochakjeung

Juyeon falls for her professor, Jeonghyeok, at first sight. After four years of nursing a one-sided crush, she finally works up the courage to confess, only to receive a shocking proposition from him... “I'm going to introduce you to ---- next week. I want you to meet them.” “What you're saying is…” “I’m telling you to sleep with them as well. And then, bring me proof.” (Source: Lezhin, translated)