S01E01200 days to graduation

E2

The square constellation of sorrow

E3

Secrets of the observatory

E4

A love letter betrayed

E5

The beginning of love like bubble snow

E6

Cassiopeia disappeared in tears

E7

False Smile - Tokyo Edition

E8

Before you become a memory

E9

Flowers of friendship blooming in the starry sky

E10

The loneliness of angels

E11

You should be able to fly