There is a game here on this site (I forgot the name) where the same girls appeared in two games with different MC, in the first game we build a relationship with all of them only so that in the second game another MC could fuck them
(some of them, the mother of the previous MC, for example) this completely destroys the previous game, and this is NTR in the eyes of most players, because they betray the MC of the previous game. Not to consider this as NTR is a cretinism in the highest degree. And yes, there should be no other dicks in a harem games, this is a truth that everyone should know. And Mr. Mister's next game will be with a different cast, a new MC, but in the same universe