Mysterious Lotus Casebook: With the Karma Flame Gu in Hand, I Claim Invincibility

In a world of combined martial arts, Li Xiangxian transmigrates into the body of a man on the verge of starvation. Only then does he learn that this man is the older brother of Li Xiangyi, the youngest number one under heaven in the Great Xi Kingdom, and that he possesses the Fire Calamity Child Gu. Ten years ago, after the battle in the East Sea, his younger brother Li Xiangyi vanished without a trace. He has spent the past ten years searching for him. “I'll fulfill your wish. From now on, I am Li Xiangxian!” Li Xiangxian searches for the Mysterious Lotus Casebook and treats Li Xiangyi, helping him experience what it's like to have someone protect him. They travel to the Western Regions and witness the peerless sword strike atop Snowmoon City! They travel to the East Sea in search of the invincible master of the world atop Wudi City! They travel to Mount Wudang in search of the Taiji Daoist, whose strength is both hard and soft! “Hahaha! Ever since Li Xiangyi came along, I, Wang Xianzi, can only count as the third greatest under heaven!” An old man atop Wudi City said this with a sigh. But he didn't know that the real invincible one was inside this Mysterious Lotus Casebook, the true master of schemes who could outmaneuver the whole world! When someone cleaves open the Gate of Heaven with a single sword strike, and the immortals descend, beyond the reach of all living beings, he stands alone with his sword outside the Gate of Heaven and says, “May I ask which immortal from above wishes to descend into this mortal world?”