Haruto

A one arm skilled ninja assassin with the ability to hypnotize his targets through sight or sound. He lost his arm in a previous encounter with Rei, where he cut off her own arm to escape Rei's blue flame. This is the only time where he failed to assassinate his target. It is implied that he changed his ways after Sakura saved his life by hugging his to extinguish Rei's blue flame. However, he later returns being contracted to take Rei's left arm for a large amount of money, he was also given a new ability by the Pandora's Box that allowed him to absorb metal and form a weaponized replacement arm. It was later revealed he was trying to get that money to be able to take care of the children that were with him. After Rei made himself look like the bad guy, Haruto was able to leave with the children who were able to still see him as their hero. Rei before doing so, used his ability to implant his fire inside Haruto, so if he ever did anything evil again he would burn in flames, claiming that death was too good for trash like him and telling him to live, mirroring Code: Seeker's final words to Rei. However, Haruto is immediately attacked by Saechika for failing to retrieve Rei's arm, although Shibuya intervened before anybody could die. Shibuya later claimed to have taken Haruto and the children he watches to a safe place.