Is This How You Use a Self-Destruct Switch?!

Nakana Tsuan's life had always been full of danger due to her 'extremely low sense of presence'. So in order to avoid getting hit by a car while crossing a zebra crossing one day, she decided to seek help from those who shine brightly on TV and possess special powers—magical girls. "So after confirming that you couldn't find any magical girls, you became a new magical girl yourself?" She nodded. So while the colorful magical girls held hands, their friendship and bonds strengthening their magic as it cut through the sky in a direct confrontation with monsters who carefully avoided harming humans, Xun'an sat on a rooftop drinking tomato juice, moved to tears by her companions' friendship, and decisively transformed to join the battle. "For our friendship!" Then, under the despairing gazes of her companions and the monsters, she pressed the suicide switch and blew them all away. Afterward, while everyone was going crazy over the bloodstains on their bodies, she rushed back to the scene. "For our bonds!" "For tomato juice!" "For today being Tuesday!" "I can't think of a reason anymore, I just want to self-destruct anyway!" Although my magic is only a death rattle and my weapon is only a self-destruct switch, I must protect the friendship and bonds between magical girls! (At the first sight it's a story about 'cute and foolish' magical girls, but…)