Hanabichan ~The girl who popped out of the game world~

Musashi Shinonome, a recent college graduate, inherits the Shitamachi God Heaven pachinko hall from his late grandfather. While visiting the place, he finds a girl asleep in a futon. She wakes up and introduces herself as Hanabi Hana Ariake, claiming to be a perfected pachislot machine that has taken human form. To back up her story, she shows off her ability to transform and shoot fireworks from her body. In the days that follow, Musashi meets two more of Ariake's sisters-Versus Ikusa Takanawa, a lively girl, and Thunder Rai Nihonbashi, a gentle and affectionate one. Together, they must help Musashi successfully reopen Shitamachi God Heaven.