link18 honestly it's possible with the current personalities but with the story reaching it's climax soon, I feel the reveal/possibility doesn't match the pacing.
TBH I was thinking of something even weirder. like say... Chuck had blackmail material on MC's dad and forced the dad to do some 'blindfold play' with Vicky. Vicky goes along and thinks she's having a spicy night with her lover/husband. Chuck takes advantage and impregnates Vicky with MC. MC's dad tries to go on with life normally. MC's dad eventually messes up *again* and Chuck removes him from the picture.
Vicky is none the wiser. Chuck is as enigmatic as usual. MC is none the wiser. It's possible since MC's dad was a lawyer so he was 'reasonably' of high standing but again, I think such a theory would take away from the story.
mirc probably just cuz they're all from the same software (HS2 I think?)