Short OVA 'Fate / Prototype' Released

In the third volume of Carnival Phantasm, a 12 min long anime "Fate/ Prototype", a prototype of Fate/stay night, was released as an extra. Fate/ Prototype was written by Nasu Kinoko when he was a high school student.

Screenshots of Fate/Prototype (via a private blog)

Cast
Saber: Sakurai Takahiro
Saber's master, Sajyo Ayaka: Hanazawa Kana
Archer: Nakamura Yuichi
Lancer's master, Reirokan Misaya: Saito Chiwa

In the prototype, Saber is male and his master is a girl.

Fate/Prototype on MAL