Myself Notyou

Reborn as a Dungeon Core

A game screen suddenly appears in front of Patrick while he’s driving and tells him he’s been chosen as a candidate for the position of a Dungeon Core. All he has to do is kill 3 entities within 60 seconds, then himself. The MC just accepts the truth of the notification and does it crashing his car into other drivers then poisoning himself.

Now he’s a green crystal, a dungeon core. He uses a limited supply of soul power to create his dungeon, make traps, and populate it with monsters. To get more soul power (SP) he must lure and kill creatures. However, anything that enters his dungeon will try to seek him out and destroy him.

His first minion? An ant.