A Nightmare from the Past. Upon finding the Warabe Yuusai Toy Store empty, Rinko decides to appraise Touko's status prior to inquiring Misako the applicable deviant diagnostic for Touko's protracted incapacitation; just as the frustrated Rinko decides to shake Touko down for answers, a mysterious girl arrives to commission Touko an investigation at a nearby cavern. Her »go it alone« penance volition now nullified, Touko leads Rinko through their collaborative prologue with their father Michiaki Mishima while en route to the cavern where it is demonstrated that Touko herself is the nightmare's vendetta; the first battle ends with Touko offering herself as a hostage while Hajime hauls the upset and confused Rinko back to the Store along with many questions of how to conquer the nightmare. The frenzy with which Misako, Hajime, Satoka, and Rinko devote their energies to what they each feel should be done next obfuscates the ultimate irony that Touko has developed an intense Electra complex that could become suicidal if left alone on its own.