Kagami Hikaru

"Any guy can get lost. Hekiru belongs to me and no one else!"

A childhood friend of Yuuto's , younger by one year, and also Hekiru's younger identical twin sister. Hikaru boasts that she and Hekiru are "mirror" twins (with full bilateral symmetry.)

She's a popular model with a slight boyish appeal. Her speech is calculated and glib, and she handles everything flawlessly in a matter-of-fact fashion.

She's also a noted misandrist whose affection towards Hekiru transcends both sisterly and sexual boundaries. As such, she is often cold and unforgiving towards Yuuto.