Re:Zero Kara Hajimeru Isekai Seikatsu - Arc 7, Chapter 23 – “Musician Natsumi Schwartz”

Demon pets, demon soldiers, and demon warriors.

In this bizarre world where everything can be a partner, Du Yu looked at Qian Zhihe with wings flapping in his palm, and couldn’t help falling into deep thought.

Did she just say…she is from the Golden Crow?

…

Easy and funny, welcome to the pit.

The works “Nine Stars Poisonous Milk” and “The Lord of Nine Stars” have been completed, and you are welcome to read them.

…

- Description from novelbuddy

One day, I woke up only find out that I’d become a Demon Lord, an individual responsible for protecting a dungeon. The world I’d been spirited away to was one filled with violence. Gigantic monsters wandered through it and competed with each other each and every day for the right to survive. I had no choice but to strengthen my dungeon’s defenses in hopes of living another day—or at least that was what I’d thought. For some odd reason, I instead ended up spending my days in relaxation and bliss.

On a normal boring day, a message appears, inviting him to a Tutorial.

[You have been chosen as a Lord of the Intergalactic Lord Project.] [Your reward: A floating island to call your own.] [Your mission: Build your kingdom, summon legendary allies, and dominate the worlds!] [Your advantage: An SSS-grade Ultimate Gacha System.] Atlas Blackthorn, the newly chosen Lord of a floating island, wields the power to summon legendary warriors, powerful artifacts, and, of course, waifus. With boundless ambition and the Ultimate Gacha System at his side, Atlas sets out to become the strongest Lord in all worlds. How far will his ambition take him?