Almost Transparent Blue (限りなく透明に近いブルー Kagirinaku tōmei ni chikai burū?, Infinitely Almost Transparent Blue) is a 1976 novel, written by Japanese author Ryū Murakami, that features a portrait of narrator Ryū and his friends trapped in a cycle of sex, drugs and rock 'n roll during the 1970s.
Narrated by the main character Ryū, the novel focuses on his small group of young friends in the mid-1970s. Living in a Japanese town with an American air force base, their lives revolve around sex, drugs and rock 'n roll.
- Ryū – Narrator. 19-year-old bisexual substance abuser.
- Lilly – Ryū's prostitute friend and casual sex partner.
- Reiko – Okinawan friend of Ryū and girlfriend of Okinawa.
- Okinawa – drug-addicted Okinawan friend of Ryū and boyfriend of Reiko.
- Yoshiyama – Unemployed junkie friend of Ryū and abusive boyfriend of Kei.
- Kei – Friend of Ryū and girlfriend of Yoshiyama.
- Kazuo – Male friend of Ryū.
- Moko – Substance abuser friend of Ryū.
- Jackson – African American Airman at the local AFB, he arranges for group sex escapades between his base comrades and Ryū's group.