Shadow Monarch (Solo Leveling x HsDxD)

Enter Kazuki Tanaka, your regular high school student. Life has always been the same, eat, sleep, school, etc and repeat. That was until a fallen angel attacked him while he was taking a stroll. He was about to die until...

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Notes: I will change some aspects when it comes to Solo Leveling, you are going to see things such as dungeon creation, observe, etc.
- This is not a "Betrayed" book
- Rias will not be a pain in the ass
- There will be a lot of violence
-There will not be a harem
-Constructive criticism is accepted

You may also see some appearances of characters from other anime and Manhwa.

This was originally published on Wattpad and Yes, this is MY story.