-In magic isekai world mom and dad were engaged and in love.
-But mom was too dumb and she ALSO fell in love with some demon's D who was bored.
-Demon brought to light all their wild times they had in front of the whore's fiancee and some other important people for the LULZ.
-Then the bug godness erased him.
-Bug godness wanted to help the dumb whore (removing everyone memories about the incident for example) but the dumb whore is dumb and she says no cuz she loved the demon's D.
-Cuck fiancee still loves the whore so they run away to "our" world leaving everything behind.
-Godness accepts that only if they give her their most loved thing.
So, MC got sold to bug godness cuz his mom was a whore and dad a cuck. Just wow...