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Intro. Series: The Illegitimate Heir 18-year-old Han Tae-oh lives alone, his mother is a nun and his father is in jail for domestic violence. He is a university student and has two part-time jobs: one as a teacher and one as a personal math tutor for Kang In-ha's younger sister who is his best friend and is the illegitimate son of Kang Jung-mo (the country's largest shareholder and businessman) who runs Kangoh. Kang In-ha and Han Tae-oh are very good friends unlike Tae-oh, In-ha is conceited, capricious for being the son of a rich family. Han Tae-oh, on the other hand, is silent and observant, the only thing he is interested in is making Kang In-ha the owner of Kangoh with his university project: looking to the future, he doesn't care about anyone's love interest.

Han Tae-oh

@Geo