Love Between Fairy and Devil - The ML's father / leader is not his main antagonist (the ML's father is dead as of the beginning of the drama - that's mentioned about 30 seconds into the first episode and in the synopsis, so not a spoiler), but he definitely did antagonist-like things to the ML "but actually it's to make him stronger". The ML is the Moon Supreme (leader of the Moon Tribe). His father was the former Moon Supreme. When the Moon Tribe faced an existential threat, the ML's father discovered that only the ML had the potential to be capable of wielding a weapon that could protect the Moon Tribe from obliteration. The ML's father had him undergo torture, made the ML believe that his father never loved him, and manipulated the ML into killing him so that the ML would lose his emotions and be capable of wielding the weapon.
Doom at Your Service - The deity (who takes on the appearance of a sickly young woman) that created the ML also creates many hardships for the ML, but actually the hardships are intended to help the ML achieve growth and a meaningful happy ending.
Scandal: A shocking and Wrongful incident - ML's bio dad is evil and greedy that cause another father to lose his child, thus he kidnaps ML. So he has evil bio dad and criminal Kidnapper dad
Come and Hug me - dad is serial killer
The Red Sleeve - MLs grandpa is ruthless ruler that killed MLs father
Love Like Galaxy - though technically antagonist is not bio dad
Cruel City - guy the ML considers as father-figure/mentor is the evil manipulator
