Hanasakeru Seishōnen (花咲ける青少年, "Youth That Can Bloom") is a Japanese manga series written and illustrated by Natsumi Itsuki.

Despite its shōjo-romance undertones, the story itself evolves as a power political mystery involving a small, southeast Asian country called Raginei (purportedly near Malaysia).

She first meets Eugene Alexandre De Volkan, a beautiful man whom she calls Mustafa because of his uncanny resemblance to the now dead snow leopard she once loved.

Carl, on the other hand, finds room to be more forgiving, especially with the developing friendship between himself and the gentle, understanding Kajika Burnsworth.

The Prince grows up during his two years at the Burnsworth estate and eventually makes his move to re-enter the country and bring things back under control.

Kajika, Li Ren, Eugene, and Carl Rosenthal get caught up in the country's troubles and all four of them are trapped within its borders when chaos breaks out.

Li Ren is injured during a coup d'état battle at the airport and he and Kajika are both sheltered by a Rumaty-supporting faction led by Isaac Noei, once a high-ranking officer in the Royal guard.