Turns Out I'm Not the Only One Traveling Back and Forth

Shen Yan, who is about to take the college entrance examination, always thought that he was the only one who traveled to the world of cultivating immortals, until... "How come you, head teacher, have traveled through time too?" "Why are you in Tianyan Sword Sect if you're not the squad leader next door?" "Aren't we good brothers, Lin Buhuo? How come you became an immortal?" "Xia Qi, I will take you to Blue Star if I have the chance!"