You Were Only Supposed to Fill In, Not Steal All the New Generation Heroes

Lin Lan is a hardcore tokusatsu fan who knows every Ultraman series inside and out. He accidentally transmigrates into the world where the Ultraman X TV series begins. An absolute egoist, he's decisive and ruthless, and definitely no saint. He lives by the creed “rules are made to be broken,” and sees the entire Ultraman universe as a super game he can play however he likes. A total “fun-seeker,” his greatest pleasure is watching the original characters look shocked, break down, and question their lives after he gets involved. He does have limits: he may play the villains to death, but he won't go out of his way to destroy the universe.