Douluo's Sword Supreme

Introduction: [Derivative fanfic + system + upgrade text + twin martial souls + sinister + slightly funny + multi-element + swordsmanship + self-created martial soul fusion skills] Chen Tian was originally an ordinary person on Blue Star. By chance, he traveled to Douluo Continent and became Chen Xin's grandson and was bound to the system. By chance, Chentian's Seven Killing Sword martial soul mutated and turned into a sharper Nine Heavens Sword. Twin martial souls? Sorry, me too. That's right, Chentian also has an original martial soul - the Eye of Reincarnation. A legend begins... The introduction is weak, please read the text.