Upon receiving an invitation to a treasure hunt from the famous mysterious item artist Reinette, Ramune and Kuro visit Reinette's mansion. There they encounter Ayame and Nico, who have also come to participate in the treasure hunt. However, when Ramune sees the man with them, his expression freezes, and he attempts to flee the scene. That man is Ramune's master Momiji!
That suit of armor is simply 
tracing your movements.
.بدلة الدّرع تلك تقلّد حركاتك فحسب
Die Rüstung verfolgt
nur deine Bewegungen,
Esa armadura simplemente
copia tus movimientos.
L’armure ne fait
que copier les mouvements,
Quell'armatura 
sta solo imitando i tuoi movimenti.
A armadura está apenas
seguindo seus movimentos.
Эти доспехи лишь повторяют
все твои движения.