HxH: God of Choice System - Chapter 24: Strong Opponent

The strongest man of the cultivation world, Yu Hua had sent the Grand Supreme Elderly Lord, Chi Hou to cultivate. After cultivating, Chi Hou was unrivaled for hundreds of thousands of years. However, he was ridiculed by the Demon Lord to be a bachelor who is as old as bone ashes and a fossil grade single dog. Not to even mention a girl, he doesn’t even have a little sister. In order to reverse the game, Chi Hou decided to kidnap the Demon Lord’s precious sister and turn her into his own little sister. He’ll first save her, then raise her, teach her magic, feed her dinner, tell her bedtime stories, and give her rare treasures. Like this, he’ll be the perfect brother. She won’t even remember her real brother.

Little sister: “What does this pervert who pulls me up every night to tell me ghost stories want to do? Cultivating to become a celestial is too hard, I want to go back to Earth!”

- Description from Novelupdates

Skyscraper's rooftop.Fang Cheng is sweating heavily, relentlessly training.1000 airborne clapping push-ups.1000 two-finger push-ups.1000 one-arm pull-ups.1000 one-arm handstand push-ups.1000 single-leg squats.Plus, holding a dragon flag and a Baki plank for one hour.Looking in the mirror, Fang Cheng shows a satisfied expression.“All six skills are maxed out, I can finally synthesize the mythic talent, Asura's body.”Neon-lit chaotic dark city, countless crimson eyes lurking around.Conglomerates, serial killers, cultists, gene-modified beings, rebel groups…Fang Cheng, with his panel, intrudes into this seemingly ordinary mysterious world.Gaining experience and cultivating through push-ups.Fitness, boxing, sanda, parkour, meditation, breathing, qigong…Each seemingly ordinary skill achieves unimaginable heights.Pushing human limits ever higher, crushing every so-called “monster.”Until — becoming the god of the new world!

Protagonist travels between different anime worlds to right wrongs and uncover his reason for being along the way.

The youngest princess of the country of Stellaus, Marietta, was betrothed in a political marriage to the General of the great militant country, Oltaire. General Belvant was often said to be strong, a fierce and terrifying god of a warrior. On the other hand, Marietta was a delicate flower of a princess. Everyone felt pity for poor Marietta’s situation, however, the truth was that Marietta found the General very dreamy… The story of a 30-year old General with a scary face (who was actually quite nice), and the tiny and adorable 18-year old Princess in their times of conflict and of lovey-doveyness.