Young Boss (LICO)

Kang Si-Hyeon is an ordinary office lady finally about to get married after a long relationship. One day, a new manager was appointed to lead her department. The new manager is Yun Tae-Ha, whom Si-Hyeon used to look after when he was a little boy! They had lost touch when he entered military service. Now the former cute kid is looking at her with the eyes of a grown man as he said to her, "Why don't you marry me instead!" (Source: Naver, translated)