Making a harem after transmigrating - Chapter 136: Awaken the fragment?

In his previous life, Zhang Beixing died young due to health reasons, but he was reborn back in his college days.Looking at this young, healthy but frail body, he decides to start working out rigorously from today onwards, to become strong and healthy.【Question: I want to enhance my constitution and keep getting stronger, what should I do?】Zhang Beixing seeks help online, and by sheer coincidence, the Persuasion System appeared. As long as he listens to advice and implements others' suggestions, he could acquire Ability Points and get stronger indefinitely.“Run too slow? Run with weights! Carry a load of fifty pounds, and run a crazed ten kilometers every day, you'll be as light as a feather.”“Lack of jumping strength? That's because you haven't done the Left Foot Stepping on Right Foot. Workout like this and you can reach the sky...”

First World : CampioneCurrent - Second World: High School DxDThird World: ???Reincarnated into the world of Campione! Haru Kasugano, our hero slays gods and ascends as the mightiest Godslayer. He battles powerful God-Kings and Campiones, claiming victory after victory. Whatever it is. [Wealth, Power, Beauty] he has it All. Watch him grow stronger as he travels into new realms like High School DxD and the Fateverse, leaving a trail of defeated gods and captivated hearts in his wake.

Kawaki, who was born in the dragon vein of a planet (Altana), first met Umibozu who was traveling in the universe, and his girlfriend, Kouka.Later, he came to Earth by accident and met the teacher who affected his life —Yoshida Shouyou.He also met a group of friends. The most conspicuous among the group of friends is a fool with silver hair and naturally curly hair, a short man with purple hair, and a little devil whose catchphrase is “Not Zura, it's Katsura!”Gintama Doujin, not transmigration.