The School's Omnipotent Useless Garbage

The School's Omnipotent Useless Garbage summary:

He is skilled in culture and fighting. He is proficient in both Chinese and Western medicine. The prettiest girls in the school can’t resist falling for him. He is both erudite and informed. He travels by air, land and sea as he wishes. Even the roses bloom for him. He is a great strategist, and an excellent marksman. Blessed by the heavens, this is Liu Yang. Possessing an unbelievable system, from useless trash, he became omnipotent.