Boobies

You play as a guy that has the power to save heroines/girls from different parts in the multiverse after the destruction of their universe.
You will provide homes to them in your base called zone zero.
You identify them as BIOLOGICAL OTHERWORLD ORGANISM BEINGS IN EXILE.
B.O.O.B.I.E.S for short.
Take good care of them and eventually, they’ll be a part of your loyal harem!​