Idea for a manga
A guy who doesn’t have any friends starts getting pestered by this girl he doesn’t know. Everywhere he goes she keeps following him around and pestering him and doing juvenile stuff like stomping on his foot and headbutting him. It doesn’t help matters that it turns out that she’s his next door neighbor!
After managing to break into his house, the guy demands to get an explanation. From there, the girl claims through a note she has a curse put on her that only allows her to be honest three times in her life, with her dying after the third time. This only of course raises more questions than answers, none the which the note being grossly filled with spelling errors.
As the guy finds out, she’s been trying to get his attention because her family died in a mysterious fire that only she survived. And, in her first act of honesty since the curse had been cast, she only pleads to the guy one simple request: please let me live with you because I like you.
From there, the guy and the girl go on a quest to try and get the spell lifted. And of course, wacky hijinks ensue where the guy puts up a jar for every time she is dishonest. That includes every time she hits him, each of which are 25 cents. Near the end of the series, the girl buys the guy a wedding ring with the money raised and proposes to him.