A foreign Exchange Student from Britan, and Kazuya's best friend other than Victorique.
Avril is the the granddaughter of Sir Maxim Bradley, and an exchange student who arrives at St Margurette Academy.
Kieran II, Posing as Avril
At first, an impostor presented herself as Avril, looking exactly like her, except that the impostor had a mole on her cheek, and her eyes are narrower. she was after a valuable stamp, the Penny Black, that belonged to Maxim. She met Avril on the train to Saubure, kidnapped her and hid her in a warehouse, until Kujo, with Victorique's insight, finds and rescues her.
Avril has a bubbly personality, always interested my things she gets shown by Kazuya. interestingly, she is also interested in ghost stories, something her imposter matched well. Before she met her, she assumed that Victorique was a boy, and after learning of Kazuya canceling their summer trip together to spend time with Victorique, who would've otherwise been alone on campus, she views Victorique as a rival for Kazuya's feelings. this was further shown when they did meet, they initially broke out into a fight. however, after challenging Victorique to solving the mystery of Leviathan the Alchemist, which she lost, both gain a mutual respect for each other.