Summoned from the depths of Hell by the witch Yurine Hanazono, Jashin-chan, a peculiar half-human, half-snake demon, desperately seeks a way back home. However, her plans to end her summoner's life hit a snag as she constantly faces brutal retribution from Yurine for failed attempts and mischievous acts. Plagued by a penchant for squandering money on pachinko, Jashin-chan's woes deepen when she gambles away a hefty sum borrowed from Hell Financing, burdening her with an insurmountable debt. Fleeing to Hokkaido in a bid to evade repayment, her hopes for absolution are shattered when her creditor tracks her down, threatening to unravel her elusive dream of debt forgiveness.