Master, He Is Weak and Cannot Take Care of Himself

[Two male protagonists + 1v1 + master and apprentice + double cleansing + double strong + young + yandere + he] [The invisible crazy batch of rotten salted fish is attacked by X tea master, who cuts it white and cuts it black] Xie Zhaowei, the Immortal Lord of Lin'an in the Immortal Realm, is also called Lin'an Sword by the immortals and demons. Thousands of years ago, during the battle between immortals and demons, Xie Zhaowei's foundation was damaged and his immortal power was unstable. He watched helplessly as his elder brother Zhi Xiao, whom he regarded as his elder brother, died in front of him. From then on, he fell into ruin and his reputation was gone forever. Thousands of years later, the world will only know that Lin'an Immortal Lord is a medicine jar that can be overturned when the wind blows. But even so, Xie Zhaowei's master Guangyuan Xianzun happily sent him an apprentice, but why did that apprentice look so similar to his senior brother? Let's not write too much, there are too many foreshadowings, otherwise the plot will be revealed...