Ichinomiya, Hikaru

一宮光, 御前

Formerly known as Gozen, the head of Easter. As Gozen, he promised company employees a successful career if they could present him with the Embryo. According to the manga, he desires a rare, one-of-a-kind jewel, which is why Easter is searching for the Embryo.
Hikaru is unique; unlike almost all children, he did not have a Heart's Egg inside him. In chapter 41, after his past is revealed, he finally gains one. It turns out that his egg was actually the shining white egg that others had previously suspected to be the embryo.
Hikaru is Kazuomi Hoshina's grandson.