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!
Please complete the missions 
and acquire all seven keys.
.أكملوا المهامّ رجاءً واحصلوا على كلّ المفاتيح السّبعة
Per completare la missione, 
sarà necessario ottenere tutte e sette le chiavi.
Por favor, completem a missão
e consigam todas as sete chaves.
Выполните все задания и
получите все семь ключей.