To Forget Or To Be Forgotten

After a semi-special concert, Yuna remembers to head over to the police headquarters and visit Stella for the item the teen has been telling her about. On the way there, she bumps into a strange 15 year old boy, Gaen Kyoya. Yuna was suddenly knocked out cold after being uncomfortably tailed for some time by Kyoya himself and has then lost memories of what was happening around her.