TV series: Daily life of male supporting role

The survival rules of male supporting roles in TV dramas: keep a low profile and stay away from the male and female protagonists. The protagonist is not fixed, there may be a reborn person, a fast-traveling person, or a person who travels from ancient times to the present or from the present to the ancient times. The story is short and fast-paced. There is no fixed CP, and the male supporting role is the only one in most worlds! The characters are ooc, and there are private settings. If you don't like it, please don't read it! ...