aggressive seme who is the protector and does what he wants, but talks about it only AFTER he's done it, and a doormat uke whose only job is to be the semes sex object + "mother" to the kids
and it was obvious how the cheating seme would be portrayed as a sympathetic figure - by having his gf conveniently cheat on him, that too from the beginning.
Mai didn't cheat on him. She only said that around the time Takafumi confessed to her, her friends were getting married one by one, not that she fell in love with another man at that time.
Well if this can reassure you the woman sucking his cock is not his actual mother it's one of his "clients" and he kinda sees his mother in her. So this woman is not his mother she's a random (and also a pedophile wich is a problem)
towards the uke to have sex. then the pedo entered and he walked away scot free. bravo. A+ content.