Dungeon ni Hisomu Yandere na Kanojo ni Ore wa Nandomo Korosareru

Kiska was framed and banished to the deepest part of the Dungeon. For an unskilled non-adventurer like Kiska, it was like a death sentence. He was attacked by a high level monster, and just when he thought his death was near, a voice rang out.

"I will help you." Then the voice said, "The name of the skill I will give you is 'Save and Reset.'"

With this skill, Kiska has the power to rewind time back to just before he was killed. But even being able to avoid death is just the beginning of a new hell. More than just the monsters and traps, Kiska finds heroines imprisoned within the dungeon, lady vampires looking to bewitch, and incarnations of demonic swords, all of whom seem to want to kill him.

...