The series also contains a Boys Love (Yaoi) story between Jae, Nan Woo's uncle, and Hyun-Ho, an acquaintance of Seung Ha.
LL Cool J | Cool Hand Luke | Cool Whip | Cool Runnings | Cool Papa Bell | Cool FM | Cool Climate Oenology and Viticulture Institute | Be Cool | Bebe Cool | Yolanda Be Cool | Phil Cool | Medium Cool | Too Cool | The Cool Mikado | Global Cool | David Cool | Cool World | Tré Cool | The Day the Earth Stood Cool | Terminal Cool | Stolen Moments: Red Hot + Cool | He Was Cool | Cool Struttin' | Cool Jerk | Cool jazz | Cool Japan | Cool Hand Luke (band) | Cool Bobby B's Doo Wop Stop | Cool Bobby B | Through Being Cool |
In 2008 Morgan Creek Productions filed a lawsuit against Nintendo alleging that they illegally used the song "You're So Cool" from the film True Romance in an advertisement for the game.