Adrien's twin brother. He's the oldest.
Him and Adrien were not in good terms, but he's trying his best to fix that.
Nobody, not even Anthony knew how he was transported to Royal Sword Academy. The only thing Anthony remembered was waking up in RSA's infirmary. Ambrose mentioned that he found Anthony laying unconscious at the school ground.
He reunited with Adrien during VDC, which he was seen with Neige and the other boys.
He tried his best to convince Adrien to follow him to RSA, but Adrien disagreed as he wanted to stay in NRC. This caused them to argue. Adrien mentioned that he's tired of having Anthony hovering around like a hawk and pushing him to do things he didn't want.
Anthony was also present when Vil overblotted, which solidified his reason of wanting Adrien to be transferred to RSA.
After book 6, Anthony told Ambrose to have a discussion with Crowley about wanting to get Adrien transferred to RSA. They ended up holding a singing competition to decide that whoever lose, they will have to transfer to other twin's school. Anthony lost the competition.
Anthony disliked being transferred to NRC at first, but he slowly started to like the school and the students.
He's an active member of the Science club, which made him befriended Rook and Trey. Trey mentioned that Anthony is an enabler for Rook's dangerous stunts during club activity.
Anthony was interested with Idia. He wanted to be close to him. Luckily for him, Idia found Anthony soothing and calming to be with and dubbed him an introvert's safe space.
Anthony and Adrien's relationship began to heal after transferring to NRC. They talked things out and understood each other.
Turned out, Anthony was mentally and verbally abused by their parents, but he didn't have the courage to fight back.
When Adrien and Anthony were little, Adrien would end up protecting Anthony from bullies.
Headcanon voice: Saito Soma
