Kaeya Alberich got into Favonius College when he was 18, and ever since he's had anything that people his age could want.

Sex, alcohol, parties... a lot of people were envious of how Kaeya could do all that and still succeed in his studies.

Despite the seemingly 'perfect' life of Kaeya Alberich, he had a rough childhood - spending a lot of time in foster homes before he was adopted by Diluc's father.