1. NightS
Masato Karashima is a "transporter", a man paid to smuggle anything from guns to drugs to people. When he's hired by yakuza gang member Masaki Hozumi, he finds himself attracted to the older man, and what starts out as a business transaction quickly spirals into a cat-and-mouse game of lust and deception.

2. Kanjou Spectrum (感情スペクトル, Emotion Spectrum)
A high-school student tries to be a good wingman for a classmate, with an unexpected result.

3-4. Reply (リプライ)
Told from the alternating perspectives of an emotionally reserved salesman and the shy mechanic who's in love with him.

5. Reply no Reply (リプライのリプライ, Reply of Reply)
6. Sankagetsugo no Reply (三ヶ月後のリプライ, Three Months After Reply)
7. Night one month after
A short story that takes place one month before Aru Yoru: NightS, when Karashima visits Masaki for the first time after he discovers his whereabouts.

(Source: SuBLime, edited)