A sequel to Sora no Soko Shirasuna no Himegimi. Yami no Tenkuu is about Rika, Yoshino and friends. Yoshino has special power that whoever get close to her will be able to see spirits, demons and gain paranormal abilities. Even though Yoshino have this special power, she can't see or sense anything paranormal at all. In this sequel, everyone in the manga is preparing themselves for their university exams. Yoshino's friends start losing power to see the spirits. Rika as being someone with a strong six sense, still can see spirit as usual. One day she notices that her paranormal abilities is still going on, Rika and Yoshino meet a mysterious new student named Kawamura. Another huge case where Rika and Yoshino have to get themselves out of trouble.