The "Nighttime Youth Series" vividly depicts the lives of men and women consumed by lust and desire in the nighttime entertainment districts of a neon-lit metropolis. In the second installment, "Iro," Tatsuo Umemiya plays a bartender in a mammoth bar who seduces female customers and extracts money from them, showcasing his charming personality alongside a cast of gorgeous sexy actresses.
| Actor | Role |
|---|---|
 Tatsuo UmemiyaNot listed | Not listed |
 Mako MidoriNot listed | Not listed |
 Reiko ŌharaNot listed | Not listed |
 Toshie KimuraNot listed | Not listed |