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!
Oh, right. Nico-san's exceptional 
hearing should do the trick.
.صحيح. ينبغي بحاسّة سمع نيكو-سان الاستثنائيّة حلّ المسألة
Ach, stimmt! Nico hat
eine übersinnliche Wahrnehmung.
Ya veo, con el gran oído de Nico…
C’est vrai que Nico
possède une ouïe surdéveloppée.
Oh, giusto. Nico con il suo udito eccezionale 
potrebbe farcela.
Entendi. Com a super audição
do Nico-san...
Ясно. Нам поможет
исключительный слух Нико.