Ore Dake Haireru Kakushi Dungeon Online

Originally a web novel on Shōsetsuka ni Narō starting in 2017, the series has expanded across multiple formats:

Using these powers consumes "Life Points" (LP). If his LP reaches zero, he dies. Ore dake Haireru Kakushi Dungeon

The gorgeous receptionist at the Adventurers' Guild who manages Noir’s quests and is deeply smitten with him. Originally a web novel on Shōsetsuka ni Narō

A legendary S-rank adventurer cursed by "Death Chains" in the hidden dungeon. She acts as Noir's mentor. Ore dake Haireru Kakushi Dungeon