Procella's Yoru Nagatsuki and You Hazuki are childhood friends whose families have known each other for generations. Their personalities, preferences, strengths, and weaknesses are opposites, leading them to sometimes drift apart. However, as they continue to work under Procella, the two of them are true partners. They've spent most of their lives together. They can tell each other things too difficult to say to others. And because of that relationship, they sometimes clash... This is the, in a sense, same old story of an argument they have during a dance lesson while preparing for the Full Moon Festival.
Because I can't let this end 
with a mere moment of suffering.
لأنني لا أستطيع أن أدع هذا ينتهي
بمجرّد لحظة معاناة
Weil ich nicht will, dass du
kurz und schmerzlos stirbst.
No te permitiré sufrir
sólo por un instante.
No sufrirás solo un momento.
Je veux que tu puisses souffrir,
Perché non voglio che tutto questo finisca
con un unico attimo di sofferenza.
Porque não posso deixar que isso acabe
em um breve momento de sofrimento.
Не могу же я всё закончить,
причинив тебе так мало боли.