After being coerced into attending a mixer by her friends, Kotoko finds herself enamoured with another girl there, the mysterious and radiant Tsutsuji.
- The Girls' Arcadia: Erosion
- The Girls' Arcadia: Elysium
- The Girls' Arcadia: Emotional
- Ribbons Untie, Frills Melt (リボンはほどけるフリルは溶ける)
- What is Love? (愛とか恋とかわからない)
- Afterwards (その後)
- Remembrance of Arcadia (追憶のアルカディア)
- Becoming Cute, Becoming Clean (かわいくなって、きれいになって)
- Narumi and Kashiwagi (なるみと柏木)