This is my fanfic idea. MC will have power ssimilar to Escanor from Seven Deadly Sins Manga. I haven't decided on his martial spirit yet but I kind of imagined his power scaling. Below are some of my immature ideas.
MC's soul power increases in daytime till noon like Escanor. At noon his soul power level will be plus 20 levels. like at " the one", mc will have +20 of his original level. and this increase is not for all levels. As we know after reaching titled douluo , each Level is kind of exponential steps. So I assumed it will add +2 or +3 Levels or at noon he will reach 95 or 96 Level after title douluo. After reaching 94 /95 Level at noon, he is limit douluo. When he reaches 99 level, he reaches god level at noon. After understanding things when he becomes god at noon, he will create his own godhead.
Similarly, I kind of assumed a weakness for him during night that is he will have - 10 or -20 decrease during night. So till level 20, he is a normal person during night. This can be avoided in later stages by adding a soul Skill or soul bone with Rhittas ability to store to use it during night.
Mc will join Spirit hall. he resolves issue between Bibi dong and Qian Renxue.
Finally Hero will defeat Tang San in find battle. I haven't planned anything for Tang San yet thinking that Escanor is enough to defeat him. I will update when I get an idea.I havent thought about female lead also.