Mangaka: Shimaki Aki
Summary: After losing her parents when she was young, Rio has been supporting herself and her brother. Rio believes that it’s useless to rely on others. One day, suddenly, a mysterious guy appears in front of her, who exactly is he? (Summary from Tenshi-tachi)

Volume 1 ch 01
Volume 1 ch 02
Volume 1 ch 03
Volume 1 ch 04
Volume 1 sidestory