Why did you call that guy an incel when he told the truth we don’t really know if someone took Banri’s V-card, but that doesn’t matter anyway because the real problem is what a hopeless and simply stupid character Banri is.
She literally let herself be blackmailed by some guy while being the daughter of the richest man in that universe, she deceived her whole family and you could say she even made fun of Arata when he was worried about her, pretended to be happy in front of her whole family, and then it turns out that the guy gets punched once in the face by Arata, stands up, stomps his foot, and leaves really “dangerous” guy that was. “That whole plot and Banri’s character are pathetic.”
Banri went from being a nice, cool older sister to a damsel in distress with a negative IQ, as well as a character who isn’t even trustworthy.