Stories previously published in a Doujinshi collection [Kokoro Kinema], include:

Volume 1

• Junai Immoral / Immoral Pure Love (純愛インモラル)
  Also included in Junai Immoral

• Sou Itte, Kimi wa Warau (そう言って君は笑う)
  Having forgotten to hand in his science paper, Sera goes looking for his teacher in the staff room. Unfortunately for him, his teacher isn't alone when he finds him. He's with Sera's classmate Sasaoka, and to Sera's shock, the two of them appear to be lovers. Having secretly witnessed something he shouldn't have, the incident leaves Sera with confused feelings...

Volume 2

• Mada, Tayutau Mizu wa (まだ、たゆたう水は)

• Kusabi, Aruiha Kaihou no Tobira (楔、あるいは解放の扉)
  A schoolboy wakes up to find that he’s fallen prey to a classmate who intends to take out his vengeance on his body.

• Kitto, Kikoenai (きっと、聞こえない)