Forest

 Forest (also known as Simon "Crybaby" Forest) is George's friend. He somehow got infected and by the time he reaches Omoro, the restaurant run by George, starts to change into a chiropteran. He attacks Saya but Hagi protects her. George takes Saya's katana and attacks Forest but gets seriously wounded by him. Forest flees for the time being. Later, he calls his wife, Reimi, to a warehouse where he sucks her blood. Kai, who has been following Reimi to find Forest for revenge, hears her shriek and rushes in to see her bloodless body. Forest attacks Kai but Saya comes just on time to save him and kill Forest with her blood.