Youkai Ninge
Summary
A boy wakes up in a strange room and finds a girl passed out with him. They find out they both have weird collars on. The boy has a phone which seems to be connected to the people behind this. They want them to do what?


















I think the phrase you were looking for is "May have been Slain/Killed/Kidnapped/Assassinated/or Violently Abducted" because, dang, that is a mess right there...