People write diaries in Zongwu, and the heroes collapse

Introduction: Lu Chen traveled through Tianlong and got a diary. He could become stronger by writing in the diary every day. Is there such a good thing? So, he decided to keep a diary like crazy, and he would never waste money until he became the best in the world. However, he soon discovered that this was a world of mixed martial arts, and one heroine after another appeared in front of him. And something seemed wrong with them. Wang Yuyan no longer loves her cousin, Xiao Longnu and Yang Guo cannot become a couple, Huang Rong even loses her brother Jing...