Surviving the Apocalypse with my Multiplier System

When Rayne Weston wakes up from a year long coma, she finds herself bound to a multiplier system. Before her life has time to normalize, she receives a premonition that the end of the world is coming.Making full use of her system, she starts preparing for every and any situation!Having access to limitless supplies makes Rayne a shining star in the apocalypse, but will she be able to stay safe in this new unruly world? — Description from novelcodex.org