Chapter 1: Himitsu no ansanburu (Secret Ensemble) by Eku Takeshima 
Chapter 2: Kimi to, tsume, hajiku by Takeshisu 
Chapter 3: Purorogu no yo ni (Like a prologue) by Yorumo 
Chapter 4: Yukidoke mizu wa mada tsumetakute by Ogi 
Chapter 5: Kimiiro shikuretto (Kimiiro Secret) by Ameno 
Chapter 6: Kore wa mada, koi janai (This isn't love yet) by Yuama 
Chapter 7: Kakkoii!! Ni nin haori souhou by Hikari Matsuda 
Chapter 8: Futari no himitsu (Secret of the two) by Yuriko Asami 
Chapter 9: Koisuru ongaku by Sora Gouto

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