Midsummer Xun'an was afraid that, because her presence was so faint, she might get hit by a car while crossing the street one day. So she decided to seek help from the magical girls who shone brightly on television and possessed special powers.
"So, after you confirmed you couldn't find any magical girls, you became one yourself?"
She nodded.
And so, while colorful magical girls joined hands and used the magic of friendship and bonds to battle monsters who carefully avoided harming humans, Xun'an sat on a rooftop, drinking tomato juice and crying tears of emotion at her companions' friendship. Then she transformed and joined the fight.
"For our friendship!"
Then, as her companions and the monsters watched in despair, she pressed the suicide switch and blew them all away. After everyone started freaking out over the bloodstains on themselves, she returned to the scene.
"For our bonds!"
"For tomato juice!"
"Because it's Tuesday!"
"I can't think of a reason, I just want to blow myself up!"
My magic only works after I die, and my only weapon is a suicide switch, but I'll protect the friendship and bonds between magical girls, dang it!