Honkai Impact: My Days as a Captain in Hyperion

Where did the screams coming from St. Freya Academy late at night come from? Who stole the missing heavy sword of Major Himeko? What kind of secrets are hidden in the treasure buried by the principal? What kind of story is hidden behind the sound of claws breaking through the air in the middle of the night in the women's dormitory? Is there moral decay behind these incidents, or is it... This novel and its characters are purely fictitious. Any similarity is purely coincidental and should not be imitated.