I don't identify with Avar at all
Usually, that's the way to enjoy ntr. I personally don’t identify myself with game characters, which is probably why nts games usually don’t seem too interesting to me by default.
Here, we have multiple characters with distinct personalities, and we see how they become more and more corrupt. The MC has the best point of view since we don’t make choices for the girls but rather observe how they make them for themselves due to certain circumstances. Even though it’s sad that we can’t have a major influence on these circumstances, the game overall is fun to play. Besides, this is compensated by costume and job options.
As for Avar, all characters here have personalities - you see them as unique entities, not just soulless props meant to grab the player’s attention. If you can’t identify yourself with Avar, that only proves his personality is well-defined, in my opinion. I think it works well for this kind of game, which can be seen as a sort of spicy sitcom. Usually, MCs are intentionally blurred so the player can self-insert: in VNs, they don’t have a face; in RPGs, they aren’t voiced, etc. But I’m not sure it would work here, as Avar has chemistry with our lovely girls.