It is possible to send demons to storage from「Demons」that can be accessed from the Menu or Party screen.
However, demons in storage cannot be used in quest, Pandemonium
Church of False Gods and etc.
In addition, it is not possible to send demons to storage if the following criteria applies.
・Brands are equipped
・Belong to a party
・Part of a D×2 Duel Defense Party
・In the midst of a dispatch mission
・Set as a supporter