A smug loli from a manga called Karakai Jouzu no Takagi-san.
Each issue basically revolves around said loli (who has a crush on the male MC) constantly teasing and playing pranks on him for her own amusement while occasionally dropping hints that she's into him. The male MC, however, is usually either too wrapped up in getting revenge on her to realise or too spaghetti to take it seriously.
It's sometimes funny, sometimes too real and always, always adorable. It'll make your heart explode. Give it a read.