Lucas initially treated Aria as a substitute for the little girl in his childhood because her lips resembled those of the girl he remembered. Later, his purpose had gradually changed. Listening to Aria tell him something about Serenity would calm him down whenever he was in a bad mood even though Serenity was not the little girl who had saved him back then.

Maybe it was because of Serenity's features. Serenity somehow resembled the little girl in his memory, which made Lucas treat Serenity espe