Citations:oku


 * 2003, Clamp, translated by Ray Yoshimoto, Clamp School Detectives, volume 1, Tokyopop, ISBN 1-59182-294-7, page 47:
 * ...I'D SAY AT LEAST 10 OKU. (1 BILLION YEN, OR 10 MILLION DOLLARS)
 * (page 56) I'M ON FIRE! 15 OKU IN TWO DAYS!