Not having friends is bad enough, but being swallowed by a mysterious black sludge in the middle of class?The worst. Yijun is no stranger to solitude, antillan school project plants a seed for a delicate bond with another loner, Suni. But friendship is a frustrating project for those who is used being alone, especially one of them claims to control a black goo that only turns hostile when the host is gripped by anxiety. Will Yijun and Suni be able to open up and make something of their budding friendship?