Top-Class Comprehension: Start with Basic Fist Techniques - Chapter 581 - 210: True Master Cui Xuan Gifts Heavenly Spirit Water, Lu Changsheng Agrees to the Treasure Contest!_2

Caleb Uesugi, a high school boy, accidentally awakens his Succubus blood and is caught between two High-Class Devil leaders, Rias Gremory and Sona Shitori, who desperately want him as a powerful familiar. He stalls, using the competition and their attractive Queens to secretly gain new talents and boost his power through physical intimacy, while dealing with a mysterious foe who leaked his secrets.Tags：Supernatural Romance，Harem，Devil System，School Life，Power Progression-------------Support me and want to read more chapters:patreon.com/Briery

I returned after 10 years.

He was sent to a world where different races and beings wage different types of wars and fight for supremacy.With a body of a mere mortal, he learned the way of the immortal craft and a different cultivation technique. Making him able to roam the land searching for a place where he could belong.How can he survive in this dog-eat-dog world he knows not. But combining the ingenious designs of the modern world and immortal energy, otherworldly devastation awaits those who face, the geared immortal.

He used to think Death was the end.He was wrong.Death was but another beginning, a new adventure.Reborn into this strange and familiar world, he should have been dead, his soul fading into nothingness, but he found himself in a completely new existence. Now, as a Primordial instead of a human, he must find his place in this wondrous world.