It’s essentially cheating on your partner. To be blunt it’s the scene when you walk into your bedroom and someone is loudly having sex with your partner.(⊙…⊙ )
I only read like the first episode but there was like an errand boy and he basically saved this girl from getting raped and stuff and the last thing i remember was the girl asking the dude to get her home safely
AND CAN THEY NOT CALL THEM NEPHEWS AND AUNT IT MAKES IT MORE WEIRD