Watch full Sengoku Collection Episode 21 English Subbed online for free in HD. Full HD Sengoku Collection Episode 21 English sub streaming online. Cavalry Queen. Takeda Shingen winds up on board the Russian space station, Nadhokha, which has currently been taken over by an enemy AI known as Vesna-9000. Asked to help free the space station from Vesna’s control so she can return to Earth, Shingen teams up with a support droid named Fasad and works her way past the enemy robots to reach Vesna. Upon reaching the centre of the station, Vesna tries to tempt Shingen with the dream of world conquest, but she rejects her offer and shuts her down. With her mission complete, Shingen and Fasad return to Earth where she intends to start up a chicken wing joint. Many plot elements, design features and scenes from this episode parody Stanley Kubrick’s 1968 film 2001: A Space Odyssey.