Akai stepped into dormitory 404 on campus with a longing for college life, and met Aze, Fat Hu, and Brother Xuan with different styles. At first, they just got along with ordinary roommates, but through daily episodes, the mystery of the roommates' bloodline of Shanhaijing was gradually revealed. Aze inadvertently flaps his wings to send the breeze out of trouble, the "Burp Fire" in the Fat Tiger Canteen is revealed, and Xuan Ge summons a black turtle to break through the fog in the suburbs to show his magical powers. At the same time, mysterious men in black frequently appear on campus, inexplicable intrusions into classes, and strange siege in dormitories. The protagonist group is keenly aware that they are being spied on by the mysterious organization "The Secret Alliance of Shadows". The secret of blood is at stake, and the crisis quietly takes root in the campus.
