Yuusha ka Maou ka Erabasete  

Decide to Hero or Devil, Hero Or Demon Lord? Let Me Choose!, 勇者か魔王か選ばせて, 魔王还是勇者 请让我选

In the story "Nanami no Taizai," Nanami was killed in a previous life. However, an Angel appeared before her and granted her another chance at life. The twist is that the Angel reincarnated her as both a hero and demon lord, which means she will have to face off against herself in order to succeed. This presents a challenging journey for Nanami.