Just as long as Kelvin remembers that after, "You were my brother, Anakin. I loved you," comes the part where he chops off somebody's limbs and throws them in lava.
They all dove through a portal to Hell, but didn't exactly do so together. Thus, they ended up in different parts of the underworld for complicated plot portal reasons.
Harem get?
This is why you don't do grimoire, kids. It starts out with just a few magic words here and there, to take the edge off. You tell yourself that you can stop reading at any time. Next thing you know you're up to a three page a day habit.
The whole 'dad tries to kill the boyfriend' trope is really only used by authors who don't have multiple teenaged daughters. In actuality if you have a household full of teenaged daughters you can't wait for them to get boyfriends and move the Hells out.