The Killer is caught and justice is served.

They pin down the next murder to either two apartments in a condominium. Unsure which one, they each take a room to protect the night of the next murder.  Misora ponders over if Ryuzaki is in the correct room and which one will be targeted that night. She comes to a realization after the help from L over the phone that the true culprit has been with her all along. The murderer Beyond Birthday is Rue Ryuzaki. Misora races down to the room and find Ryuzaki has lit himself on fire and that the person with the initials B.B. who was gonna be murdered was actually Beyond Birthday. Misora extinguishes the flame and arrests Ryuzaki for the murders of Believe Bridemaids, Quarter Queen, and Backyard Bottomslash.