Yami Kyun!

By day, Miya Akatsuki is just a slightly grumpy and unsocial girl studying in St. Margaret's Girls' College. But by night she's secretly a Final Executor – an ultimate debt collector who can make even the shadiest debtors click the "accept" button on the payment warrant. The debt collection agency she works for, however, is a slightly different than normal ones. Haruki Kobayashi, a boy working in the electronics store of his family, becomes affiliated with Miya after accidentally witnessing her...