Shakespeare no Oki ni Mesu Mama

From : Azu has an unrequited love with her childhood friend Tsukasa. One day, he invited her to see the Shakespeare museum. She touched a mirror and suddenly, in front of her eyes, a beautiful boy appeared! he said "I am Shakespeare".. but who is Shakespeare!? When she was about to run away, the boy said: "if you hide me, I will help you with you love".