Kairoutei Satsujin Jiken

Kiryuu Eriko used to be the secretary of a powerful old man. One day she accompanied him to a family reunion in a traditional pension but after that her lover was killed and she was left unconscious in a fire. Since she was badly burnt, she had plastic surgery and now she's back in the pension reuniting all the family once again. Pretending to be Honma Miyoko, she promised herself that she would find her lover's murderer.