The Self-Disciplined Me Is Practically Invincible is a Manga/Manhwa/Manhua in english language, THRILLER series, english chapters have been translated and you can read them here. You are reading chapters on www.mgeko.cc fastest updating comic site. The Summary is

> This is a world where demons lurk and all races stand, and if you are not careful, the weak will eat the strong. But all this had nothing to do with Li Dan, for as long as one disciplines oneself, one can obtain the appropriate rewards and then become perfectly invincible! "Ding: Congratulations to the host for persisting in exercising every day, and gaining a top-level body-forging technique." "Ding: Issuing a new self-discipline task, insist on confessing to a beautiful woman in the clan for a month, rewarding a mysterious talent."