- Ten Years Ago -
"Onee-sama!" Kirika called out excitedly, slamming the door open and waving her hand at the older looking girl sitting at a chair inside, seemingly working on something. "Come look! I finally learned the sword technique you always use!"
Contrary to her excited tone of voice, however, she was only met with a brief, cold stare, along with the words, "Leave. I'm busy."
"…" Kirika fell silent, biting her bottom lip in disappointment, but there was nothing else she could do but humbly obey. She was the useless younger child, whereas her older sister was perfect in everything. Whether that be academics, swordsmanship, or beauty, her older sister beat her at everything. To Kirika, she was like the powerful protagonist of a novel, the heroine in a fairytale.