Storage's name is Conjectural. No official name has been given, and it is subject to change at any time.
This Quirk seemingly gives its user the ability to store other creatures inside of their body and release them at will.
Hood used it to store multiple white Nomu within his body and release them as reinforcements to distract the interfering Pro Heroes as he battled Endeavor. Storage may have a limit of how many things you can store in your body being that Hood was able to store at least nine Nomu within his body and not more but this is yet to be confirmed.