
Okay so from what I got so far Shen chu (our MC) from ch 7 looks like those two bodies were his parents just speculation but it’s unknown what happened in his childhood but he ended up with a damaged/incomplete soul and was adopted by another family aka the the purple haired(his brother)’s family.
Time skip and now they’re students of the Zhou Lu academy which is basically a sect for cultivation and how to achieve immortality. The genre here is xianxia where people with spiritual roots (kinda like a class selection in an rpg) can determine their ability and how far they can move up the ladder in cultivation and spiritual roots follow the 5 elements such as metal, wood, water, fire, and earth, with others like ice and electricity as mutated ones which are more desirable and single spiritual roots are more rare than multiple ones meaning they cultivate faster, the whole point of this is just to reach the so called end either immortality or whatever they refer to as the last stage.
They usually have diff stages of leveling up with the basic 3 most of the time being qi refining, foundation building, and Jin Dan(golden core). Our Mc is level 1, his brother is lvl 2 and Zhao li (blue haired ML) is lvl 3 as an example. Now for some unknown reason it seems that zhao li has a certain connection with shen chus lost soul and from the flash back it seems that they’ve either met when they were young once and he had an impact on his development but gradually forgot signified by the butterfly. So when shen chu sees the new moon his mental state gets messed up usually referred to as inner demons in these genres like traumatic events and Zhao li is able to soothe him. They also just happened to draw the same ball in the entrance ceremony whatever and became roommates and that’s basically it for the first 7 chapters.