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How about adding a secret hobby or slightly more mature values as a subtle touch? Just sprinkling in your unique little quirks will make you much more appealing.

Cross-dressing boy. A trap.

Settings like elf ears would be fun! If you put in your profile, 'Express emotions and thoughts with drooping elf ears, as if the ears themselves are alive,' your expressions and appearance will become cuter.

Personally, I'd suggest something chaotic like 'Dumb but a total muscle-brain. Grandfather is the Prime Minister, dotes on ○○, and will do anything for ○○.' That alone can turn any serious scene into a gag, you know.

I'm including things like immortality and androids. Like heroine x immortal, or android x boyfriend. Lately, it's been things like 'actually a murderer'.

If you add something like "Past Life: Had this kind of relationship with the character, Reincarnation" and incorporate their past-life mannerisms and speech patterns, then strangely enough, their affection or hostility increases.

It's like 'carrying various things in my pocket.' It was fun because strange items I didn't even know about would pop out. And then, like a fourth-dimensional pocket, I could pull out various things in a pinch.