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!
No cameras, smartphones, or mysterious 
items are permitted beyond this point.
ممنوع الكاميرات والهواتف الذكيّة 
.والأدوات الغامضة بعد هذه النّقطة
No se permiten cámaras, teléfonos
inteligentes ni objetos misteriosos.
Passé ce point, les caméras, portables
et objets étranges sont interdits.
Non è concesso portare telecamere, smartphone, 
o oggetti misteriosi oltre questo punto.
A partir daqui, é proibido o uso de câmeras,
smartphones ou itens incógnitos.
С собой никаких камер, смартфонов
или мистических предметов.