Discontinued Novel: Fighting In A New Age

"I've killed to many people in pursuit of power and success in the other world to return to my own a failure" Gyun Sung who was the greatest Kendo prodigy of all time, won the world championship at just 17. Transmigrated to Murim where he spent 7 years of his life fighting and building his own power. He reached the culmination of martial arts the Martial God stage, underwent body modification perfecting his body for martial arts, and established the most ruthless and strongest mercenary corp in all of murim the Raven Black mercenary corp. He returned to his world after dying against the combined efforts of the three murim faction leaders who destroyed everything, his reputation, his friends using money and killed him after weakening him by paying of a trusted advisor to poison him. Gyun returns to his world, his qi is gone but his experiences and martial arts. He swears to himself that money will never be a problem, he will use the only things left over from his life in Murim his perfected body that has superhuman strength and speed, his techniques and the will and determination of someone who’s lived a decade fighting a hairsbreadth from death. Authors note : I will aim for one chapter a day , sometimes maybe I will write 2 or 3 depending upon how much time I have. There may be mistakes since most chapters are written in an hour based off an idea I thought of while at school. During weekends there will definitely be 2 chapters a week, and I will make sure that every chapter has at minimum 1,000 words to a maximum of 2,000. Please tell me in comments if there are any mistakes. Also if you recommend any story ideas I might implement them. Either way thanks for reading!