It's not really netorare she will quite literally fuck anyone regardless of size who flashes their dick her way she really is a nypho type character she needs sex like we need air. But she is the one who has feeling for the mc but won't confess to him that's why he gets married at the end that's Arir's fetish I just assumed it was the mc who wouldn't because he is a cuck but cucking is what he wants out of her and she gives that to him to keep a connection to him. It's well dumb unless you are into that particular fetish. It just looks like ntr.