Kuro

Kuro was a Close Neighbor of Paul Gekko's Eldest Son. He is the Older Brother of Nu.

Background
Lu's elder brother, who befriends Paul Kiske and invites him to his house, after saving him from a pick-pocket. As he becomes aware of his sister's feelings for Kio, he asks him not to meet her anymore, fearing it would only make things more difficult for her. Eventually, he becomes grateful to him for providing medicine for Lu and making her final days as enjoyable as possible.