Date A Live, Vol. 8 (light novel)

When a new Spirit, Natsumi, arrives, Shido sets out to meet her and right off the bat, things start going wrong! This witchy Spirit has the power to transform herself into someone else. Shido isn't sure what he's done to get on her bad side, but whatever Natsumi has against him, she's using her abilities to ruin his life. After taking his friends hostage, she threatens to disappear them forever! Shido has to guess who Natsumi is impersonating before she does something terrible to them all. There are just too many choices and the clock is ticking! How will Natsumi's twisted game end?