I'm Almost an Immortal, You Want Me to Be the Prince?

[Free book] Travel through the Tang Dynasty. Get the sign-in and immortality system. I wanted to practice meditation in peace and quiet. Unexpectedly, there is a guy named Li who always comes to bother him. "Li Mu, what do you think the current emperor is like?" "Li Mu, what do you think you would do if you became emperor?" ... After several years of this. This is when Li Mu is about to become an immortal. Lao Li came to him with a group of ministers. Li Shimin: "It's a showdown. I am your father, Emperor Li Shimin of the Tang Dynasty. Come back with me and become the prince!" Li Mu: "Hey, Lao Li, you are not kind. I treat you as a friend, but you want to be my father?"