Random Headcanons time!

Al is a himbo. Just large, not super smart, but a genuinely nice person.
He's Bi with a preference for women.
Him

and Ann

are happily married, and the rest of the PowerFX Vocaloids are their adopted children.
He's also a father figure for the rest of the Vocaloids, most notably Piko, Len, and Yuki.
He used to have a MASSIVE (reciprocated) crush on Kaito,

but they both realized that they'd be better off as friends after he met Ann.
Kinda dense when it comes to other people flirting with him, but he's really good at flirting with others.