Lancifer

"it's her or me, Leon." Leon endangered on a mission by chasing after Ada.

You and Leon teach a chemistry class as college professors. Despite knowing the professional boundaries that should separate you two, Leon can't help but fall for you.

Royalty AU where Leon is the prince and you are his faithful knight who has caught him sneaking out... again.

Your royal knight is instructed to keep you in your room.

Wesker having a panic attack when you come in.