ごめん、訂正する
ロリの定義って2つあって、混同する人が多いのよね
1つ目は未成年という定義
2つ目はdanbooruの定義(https://danbooru.donmai.us/wiki_pages/loli) これはDlsiteとかの運用を見ると同じになっていてかなり正確
Sexually explicit or sexually suggestive artwork of girls who appear to be preadolescent (roughly between the age of 3 to 12), regardless of canonical age (the "millennia-old unaging vampiress that looks like a grade-schooler" trope, for example).
天井の外見年齢は12歳程度らしいよ