Swallowing the Starry Sky: Luo Feng Gets the Killing System!

[Dual protagonists + Decisive killing + System + No harem + Strategy and wit] Luo Feng, a powerful lord-level man, was accidentally swallowed by a space crack while exploring an ancient secret realm, and was transported to a cruel world called "Mysterious Demonic Heaven". Demons are rampant here, and killing is the only law of survival. When he was desperate, the [Killing System] awakened to gain strength by killing the demon. Coincidentally, Xu Xin also encountered the same fate in another secret realm, descended into the Mysterious Demon Realm, and obtained the same killing system. The couple embarked on a road of endless killing! ! ! The introduction is too weak, please move to the main text.