[Western Crossover] Red Envelopes Save the World

Joey Mond has known since childhood that there's a device in her brain that lets her draw red envelopes, each containing all kinds of strange and unusual abilities. The abilities aren't exactly reliable, and sometimes they leave her terribly embarrassed... Joey had planned to keep a low profile, hide her powers, and find an honest man to marry and raise a family with. But an accident once again exposed her abilities. From then on: She helps the BAU solve cases, but wherever she goes, another murder takes place; a basketball from nowhere knocks out a clown; she leaps from a skyscraper, lands perfectly with just an umbrella, and strikes a ridiculously cool pose... When monsters invade Earth, Joey draws the red envelope [Outspin Serve: One-Day Edition]. A racket and tennis ball suddenly appear in her hands, and her body swings on its own, hitting a serve. The monster is defeated. The end. Onlookers: Weak, pitiful, and helpless. These abilities help Joey plenty, but they're not exactly ideal when she's on a date. On a date with a blond male god who's old-fashioned in his ways, she runs into a thug. She wants to be a quiet, demure lady, but draws the red envelope [Power of One Punch] and, right in front of her date, punches the thug into the sky, where he turns into a star. Old Iceman: ... Joey: Wait, something's definitely not right here. Also known as: "Big Shot, Draw a Red Envelope!" "Killer Tennis Saves the World" "The Whole World Fears My Red Envelope Draws" Setup: 1. A comedic story with familiar tropes. Characters may act out of character. If that's not your thing, don't read it and spoil your mood. 2. The heroine is Mary Sue-ish, with thick fingers. 3. No timeline, no fact-checking. Everything serves the plot. 4. Her older brother is the male lead of a certain anime and is intensely protective of his little sister. The master is her adoptive older brother. Please add my new story to your pre-release list: "[Western Crossover] The Mayor Has Her Hands Full," pairing with Batman. Theme: