The Hestia Familia has dealt with a lot of things in the dungeon, from all sort of dangerous monsters to sentient monsters and creatures to even shady and evilly corrupted adventurers in total. But how well would they do against a sudden swarm of XENOMORPHS?!?!?!?!?!?!?!?!

Across Japan many couples started committing double suicide. They were born with Thanatos. A detective who is incharge of investigating such cases finds out his wife is also born with Thanatos.