My Dear Warrior

Sky is a beautiful single female astronomer at a planetarium and has received a gift: a thick wooden-covered book and magic pen from Vanda, her aunt who has been taking care of Sky since childhood and is a crazy writer who is suffering from amnesia.
Vanda is the author of a cartoon story about a warrior and Sky ends up falling in love with the cartoon character named Hoshi - the handsome hero warrior, who's intelligent and kind.
On the night of Sky's birthday, she wishes to get love from a man like Hoshi, fulfilled in a prayer. Hoshi and the beautiful princess Luna - Hoshi's girlfriend - along with the rival Cairo suddenly drop out of a comic book.
The story of chaos and romantic love begins. Is love possible between humans and cartoons?