Story of Love that I Do Not Know

1. Kimi ga Tsukeru Ai no Shirushi (君がつける愛のしるし)
2-3. Boku no Shiranai Koi no Hanashi (僕の知らない恋の話, Story of Love that I Do Not Know)
Continuation of Chapters 4 to 7 ofMokuyoubi no Koibito.
Arima loves Saeki, his wholesome and earnest lover with an enticing pheromone, but Saeki's ex is Arima's neighbor Tanaka. Saeki convinced Arima to dump Tanaka and date him instead. Meanwhile, Saeki still bears scars from the BDSM activities his ex-lover forced on him, and he feels uneasy every time Arima's is tender toward him...

(Source: Kobunsha)

4. Yoru, Kimi ni Ai ni Iku (夜、君に会いにいく)
Continuation of Chapter 1 of Yoru, Kimi no Ai wo Shiru.

5. Itsuka Sonno Hi ga (いつかそんな日が)
Continuation of Chapters 2 to 3 of Yoru, Kimi no Ai wo Shiru.

6. Saiteina Anata (最低なあなた)