Astral Pet Store (WN) - Chapter 1505: Thousands of Floors (1)

An 18-year-old poor college student tried to apply for a job as a tutor but his life almost ended as demons' meal. In his last breath, a mysterious woman gave him a strange power. When he opened his eyes he had turned into a demon with a system that would turn him into… A pervert.

Now he must lived with his dual identity as a model student named Ethan and an incubus named Damian.

"An accident. She's pregnant. How unlucky. She got pregnant in one shot!

In a world where strength reigns supreme and only the strong are revered, conflict and injuries are commonplace.

The apocalypse descends, zombies and monsters appear, followed by System Leveling, which grants skills to all survivors.With the collapse of law and order, some become powerful while others remain weak, and so the dark ages begin.