At first sight, they become friends about building a partnership about the Lawless Heaven.
In three months of service under him, Nero thinks of him as a real brother although some guys accusing him something about trying to assassinate him, he'll never believe at them and instead defend Avilio.
Vincent is the father of Nero.
Fio is the younger sister of Nero.
Fatte is the younger brother of Nero. Recently, the two brothers haven't been talking as much. Though they disagree on how to deal with their enemies, they seem to care for each other. When Ronald suggests that they should kill Nero, Fratte works against him to help his brother escape. He warns his brother to leave the city as soon as possible. Later fratte plans an ambush to kill nero for a truce between vanetti and orcos
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