Journey to the West: Starting as the Tiger Vanguard

After eating a poisonous mushroom, Qi Hu transmigrated into the world of Journey to the West, becoming a little tiger demon and Little Drill Wind under the Green Ox Spirit on Jindou Mountain in Chechi Kingdom...

This is the story of a little demon who takes a point-allocation System, struggles through the Three Realms, and eventually becomes a great demon.

P.S. No Investiture of the Gods. The story is based on the original Journey to the West and its screen adaptations, with substantial changes.

P.S. There's also another completed, high-quality novel of the same type, I Cultivate in Journey to the West by Allocating Points. If this one isn't enough for you, go check it out.

P.S. This book is also known as Journey to the West: Even I, Little Drill Wind, Aspire to Great Sagehood.