So when a dungeon crawler and a dating sim love each other very much, you get Boyfriend Dungeon. Sure you date your weapons, but your weapons are also people, so it's fine. Sure the dungeons have you battling cocktails and cell phones, but it's all a manifestation of your psyche, so it's fine. Sure there's a whole subplot where a Frankenstein's monster character follows you around in the shadows at the command of his creator, but... wait, WHAT!?