As you know, Eja is a member of literature club in his school, right. Hence, this is the collection of poems written by Eja in his club. Eja will add his poem one by one. Oh, not all related to the main story of "Firefly and Butterfly", then almost all of his poems are about hope. Just, this is the place where Eja will archive his writings, if Eja is really exist.
And, the poems included in the main story, even written by Eja, will not be included in this place.
PS: I hope I can share my feelings through Eja.