My Sister the Heroine, and I the Villainess - Chapter 77

A fluffy, sweet modern GL story about a mature older women and a cute university student.

In the whole world there lays twelve paths to climb the Tower of God, and in legends these twelve pathways leads toward legendary road of immortality. However these paths in the Tower of God, are far too long, without end.

In ancient times there once were many types of martial art, sadly the world underwent terrible changes, and only three were left: Flame, Dragon and Star Martial Arts. Generations of experts of those three martial arts are searching for road of immortality.

Star Martial Arts practitioner on his journey of lifetime, with young beauties on the side, plans to become Highest God.

- Description from Novelupdates

Sam Sanderson is envied by many for his job, however he himself didn't seem to like it much.

Due to his expertise in nanotechnology he was tasked with monitoring the state the Valkyries, humanity's strongest weapons who all just happen to be made into gorgeous females.

Forbidden from even touching any of them, Sam spends his days in agony watching flowers he couldn't hope to touch. However one day all of that seemed to change.

Chen Rui, an otaku from earth, is reborn into a human body in another world, who falls into the legendary evil, brutal world of the devil called Mozu where humans are treated as food. He has to survive while facing horrors of the devil, violent dragons and a variety of power enemies depending on a strange super system chip and his wits. Surrounded by Devil’s beauties such as black-bellied lolita princess, cold queens, violent dragons, charming poisonous devils …