After Jingu Jin inherited a financial company from his grandfather, he became a financial manager with a large number of clients. But when he officially took over everything, Jingu Jin found that many female clients were unable to pay back the money, and they also asked to repay the debts in other ways. Isshi Iroha: That... President... I will be your secretary and work to pay off the debt, okay? I will work overtime with you in the evening! Kasumigaoka Utaha: I will be your virtual girlfriend to pay off the debt. By the way... do you still want me to wear stockings on a date? Yukinoshita Yukino: I will find a way to pay you back! Also, my cat can do backflips, do you want to come and see? Mizuhara Chizuru: I recently took on a new drama. Let's discuss the script together late at night? I will pay you back after I get the salary! This book is also known as "How I went from a creditor to a boyfriend", "As an honest capital, I just want to collect debts", and "About the debtor lady wanting to be my girlfriend".

In the endless world, a strange legend circulates: in a special little shop, by signing a contract with the shopkeeper, one can obtain everything they desire—powerful strength, countless riches, and knowledge from another world! But few know that this shop also possesses the power to change destiny, whether past, present, or future, or regardless of race or identity. When they are willing to gamble everything to change their fate, the door to this shop will open for them, and a new destiny will be born here! "Sign a contract with me, and then—transcend destiny!!" — Meanwhile, the shopkeeper, Lan Xing, is looking helplessly at his ever-growing deficit in his account book. He doesn't know when it started, but the number of girls in the shop seems to be increasing: twin oni maids, an elf girl who loves dolls, a cat-eared blade that transforms into a sword… 'The meal expenses have gone up again this month.' He only initially wanted to reciprocate a gentleman's kindness… (Also known as the Dimensional Aid Exchange, Dimensional Oddity Store, Dimensional Exchange…)