I am looking for games where the MC takes revenge on someone by corrupting/seducing his wife/gf. Especially if whoever he is taking revenge on finds out and is badly affected by this.
Unorthodox suggestion I know, but in VBC, the hero sacrifices himself to defeat the demon lord. Demon lord survives, partially absorbs the hero's body, tortures and corrupts the hero's GF who also comes after him. So, posthumous NTR.
