The Sword Immortal Is Here-剑仙在此

Otaku Lin Beichen got a mobile phone by chance, which brought him to a world called Dongdao Zhenzhou, where he became the legitimate son of Lin Jinnan, one of the ten famous generals of the Beihai Empire. He was also a notorious prodigal son with a congenital brain disease. Lin Jinnan, the Zhantianhou, was defeated and his family fell into decline. Lin Beichen, who lost his backer, was blocked in the school by various "enemies" and could not go out. At the critical moment, he was surprised to find that the mobile phone he brought with him was actually an external plug-in artifact that could assist in practicing martial arts. Relying on this artifact, Lin Beichen started his own hilarious counterattack.