What if ceres is actually the first prince, since he also got blonde hair ╮( ̄▽ ̄)╭
Hmmm... I see in the spoiler, Ceres actually the first prince who lose his memory by magic.. his hair black because the magic too..
oh..
What if ceres is actually the first prince, since he also got blonde hair ╮( ̄▽ ̄)╭