Douluo: Supporting Role Transformation Plan

As a bookworm for ten years, Yu Linfeng unexpectedly got an opportunity to travel through the Douluo Continent. At the beginning, he could choose his own martial soul and soul ring (it even supports original creation), and he could even choose his own soul power level. What else is there to say? The configuration must be full! But if it's too much of a dimensionality reduction, it seems to be meaningless? How about revamping the insignificant supporting characters in the original story?