Hitotsu Me Ripper - One-Eyed Ripper

The protagonist, "Mebuki Meme", is living an everyday peaceful life. She has important friends and a precious brother. She loves them all. However, her ordinary peace comes to an end once a series of murders begin to occur around her. The "One-Eyed Ripper". Now, who is the killer? Based off the song series by the same creator.