The First Villain in the Book

A novel in which the male protagonist turns black after time travel. It has two male protagonists. There will be a second season in the future. There are many characters from other novels and many original characters. Long live your understanding. This is the first novel. Please give me your guidance. The rest of the period is just to make up the word count for the introduction. Please understand. Thank you...………………………………………… This novel and its characters are purely fictitious. Any similarity is purely coincidental and should not be imitated.