Riku Okami = Garo
Riku village was destroy by Horrors, as his sister was taken by them, he was about to be kill by one, until a man help him by sending lightning blast at the Horror, during this, the man train Riku, after training, he been traveling to find Horrors and kill them.
Tagaki Yoroshi = Zero
Tagaki journey to the Capital, as he met Riku, as he followed him and help him and his comrades with that ambush, he sometimes get into arguments with Leone about eating his food, while he did the same, but he a great comrade to the Night Raid.
Shiro Kosuke = Dan
Shiro has set up a food stand, when Riku first met him, he got food from him and gave it to the others, when Riku and Tagaki were having trouble with a Horror, he gave them a hand, as he is a great addition to Night Raid and also because of his food skills.
Kurosaki = Kiba
Kurosaki is short of an anti-hero as he only fight strong opponents like Garo, as he is part of the Jaegers.
Kasaru = Crow
Aikawa Koji = Giru
Aikawa will kill anyone who get in his way.
Kami = Baron
Jian = Bado
Daigo = Lord
? = Ouga