Watch full Fortune Arterial: Akai Yakusoku Episode 10 English Subbed online for free in HD. Full HD Fortune Arterial: Akai Yakusoku Episode 10 English sub streaming online. Thirst. At Pandemonium, the students submit their application for culture fair event. Later at night, Erika goes to meet her mother and discusses about having servant but Erika keeps refusing not to have servant. After that Erika refuses to drink blood and tries to control it. At the beach Iori tells everything to Kohei. While the class hangs out Erika is no longer able to control her thirst then Kohei gives her his blood.