first Mc is an h0rny h0e s1ut who has no shame or brain. She is someone who has 0 dignity, after sleeping w asbelus, she expects Eivan to let her stay in his mansion. She takes everything for granted. She expects everyone to like her and when they don't she considers them "rude", ex: comes to asbelus's mansion in the middle of the night without any invitation or arrangement and she expects the butler to be considerate and let her in. Like bruh, she calls him rude but isn't she the one shameless coming to their place without stating anything because she wants to fight asbelus unacceptable.
Second, she is seriously going to fight with the mana with the person who gave her mana? What's even worse is that it wasn't even asbelus's fault that they fought like it was Eivan who went to rage war on asbellus for sleeping with his lover. Nothing against eivan or asbelus but Eivan literally provides her with everything she wants, without him she'll be nothing yet she found the guts to sleep with Asbelus. For Asbelus, he gave him his first kiss and even his virginity and brought MC flowers, gifts and a letter for her every day. Not returning the feelings is fine but she just had to treat his like trash.
Third, I know this is polyandry harem hentai but it's still very frustrating to see her not treat the guys equally.