Childhood friends (=^-ω-^=) They play on my feelings real bad. I can't help but want to give all my love to the character who has known the MC the longest, even better if they're a bit possessive over that fact.
I'm so basic when it comes to that Actually, I usually like the tsundere, kuudere, and genki types the best—though the "short kings" have a certain appeal of their own, too.
In my case, I often find myself drawn to cheerful, energetic characters.
Of course, there are times when I'm attracted to a different type based on looks alone...
But I really have a soft spot for the kind-hearted goofball type.