The Spirit of the Tree of Harmony has always been a strange personality. Due to the very few times it has appeared to the Student Six, it was hard to decipher it's thoughts and desires beyond "friendship" and "harmony." However, one night, while Gallus is fretting over a test and is aided by this spirit, it reveals a hidden desire that was very surprising and unexpected indeed.

It wants to know what having a physical, living, real body feels like; and Gallus' body has perked her interest. But what's more unexpected is that Gallus lets the Spirit borrow it.