Each ovary contains hundreds of ova (singular "ovum"). Typically they have two sexes with males producing spermatozoa and females ova. The ovaries produce the ova (egg cells). The glossy pale green ova (eggs) are spherical with a diameter. Kodansha produced a second OVA for the anime series. Hitoshi Okuda wrote two manga series based on the OVA series. Suzaku makes his first debut in Episode 2 of the OVA, The Wyvern Divided. The series consists of 117 episodes and 5 OVA episodes. Christopher is alive seen in the final OVA. Suzaku is a Knight of Round in this OVA. The limited edition was bundled with an OVA episode. Currently, no plans exist for licensing that special OVA episode. These contain archegonia, the organs which produce the ova. The second OVA, titled , was shown at Jump Festa 2005. Two soundtracks for the OVA have been released.