- Kato Rosa plays the Type-A Yukie, an OL in the accounting department of a small firm. While Naoki Nokubo plays her partner. Shaku Yumiko (Type-B) is a successful drama screenwriter, pairing up with Miyasako Hiroyuki. Kashii Yu (Type-O) is a treeter whose partner is played by Taiwanese actor Wilson Chen. Mizukawa Asami plays the last Yukie (Type-AB), a university student. She is teaming up with Tokio's Shigetsu Joshima.