Our hero, who may as well be Anonymous, meets his self-proclaimed little sister, Rin.
At the insistence of his little sister, Anon goes outside and has a fateful encounter.
With a nudge from his little sister, Anon cleans his room and finds something he sealed away.
In awe of his little sister's radiant smile, Anon attempts to fix his sleep schedule.
With his little sister's help and encouragement, Anon faces his greatest challenge yet.