Kuchinatsu is the Number 2 in the organization. He wasn't revealed until the latter chapters which explained that he was missing for 10 days because he was lost after an assignment. His skills are on par with the Number 1, Tekirei. Edit

He is known for not spilling blood during his missions for he lets his victim die by suicide. He blinded himself for he doesn't want to see "light" because that would ruin the pureness. While he is fighting with Tekirei, he said that he is happy he is blind so that he couldn't see his beloved's sorrowful face which hinted that he might actually have feelings for Tekirei. Edit