This volume includes the following chapters:

1. Natsu no Houseki (夏の宝石) [Inui Ayu]
   
2. Mata no Okoshi wo Omachi Shite Orimasu (またのお越しをお待ちしております) [Hazuki Ruri]
   
3. Blueberry Step (ブルーベリーステップ) [Pyaa]
   
4. Bimoji na Kanojo no Aoi Sekikai (美文字な彼女の蒼い碩海) [Konata El]
   
5. Ano Hi no Hanabi (あの日の花火) [Mito]
   
6. Himitsu no Futari: Zawatsuku Kokoro (秘密の二人 ～ざわつく心～) [Kuwabara Tamotsu]
   
7. Atsui Yoru ni (暑い夜に) [Mizuasou]
   
8. Sui mo, Amai mo (酸いも、甘いも。) [Tsuzura Ryou]
   
9. Doki-Doki to Doki-Doki (ドキドキとドキドキ) [Seta Seta]
   
10. Gakkugai de Aimashou (Natsu) (学区外で会いましょう。 ～夏～) [Suzuki-senpai]
    
11. Shunkashuutou Kimi to Issho ni (Natsu) (春夏秋冬 君と一緒に ～夏～) [Kurukuru-hime]
    
12. Blue Well e Youkoso (Blue Wellへようこそ) [Yuki Yukiko]