My Girlfriend Signed Me up for a Boxing Match, but I Won the Championship

As a UFC mixed martial arts player, Chen Xun woke up and found that he had traveled to a world where demons were rampant. He was abandoned by his green tea girlfriend and used his ID card to sign up for UFC, the world's craziest fighting competition, to box with monsters. Ding dong—— It was detected that the host was a professional fighter in his previous life and was given a gift package of Yang Finger. Main mission: Winning the UFC Championship of Alien Fighting. Once the mission is completed, you will gain ten times the skill power. Activate the side mission: kill a small alien with a guillotine to get a life potion. Activate the side mission: Kill a Predator with bare hands to get a powerful Vajra Palm. Activate the side mission: Kill a cockroach monster with a Muay Thai knee strike to get the Hulk Beast Transformation Injection. Activate the side mission: Use wrestling skills to kill a crocodile monster to get over-the-horizon eye drops. This book is about high martial arts, a spiritual energy resurrected world, there are various monsters, and a hero association composed of awakened people. The main plot is to participate in boxing matches, and the branch plot is to fight monsters everywhere and become an unknown hero. This novel and its characters are purely fictitious. Any similarity is purely coincidental and should not be imitated.