Recreating the Terrifying Chalk-Wielding Teacher

A world known as Guixu has formed a passage to the main world. Anyone's deepest obsessions can nourish the passage, and only the power of a heart anchor allows someone to move through Guixu. By chance, Shen Ye unexpectedly stumbles into Guixu. Faced with a terrifying classroom and an eerie teacher wielding chalk, he unleashes a strange power, successfully replicates himself as one of Guixu's own, and escapes by the skin of his teeth. A mysterious organization takes notice of him. With Shen Ye's ability to replicate things from Guixu, they set out to save the world.