Yukina Fukushima

Two high school girls who are about to graduate also happen to be highly-skilled assassins. When the organization they work for orders them to share a room, their relationship quickly sours. But when they become targets of the yakuza, the girls realize they'll have to work together to survive.

Durarara!! stage play adaption of the novel by Narita Ryogo. 円首方足 (Enshu Housoku) is the Japanese reading of a classical Chinese idiom describing the traditional conception of the human body: a round head and square feet--coming from the idea that Heaven is round and the Earth is square and humans reflect that cosmic structure.