Assault Lily Last Bullet W is a mobile game set in a near-future Earth where humanity faces extinction from the mysterious lifeform known as "HUGE." The story revolves around adolescent girls called "Lilies" who wield the powerful weapon "CHARM" to combat this threat. Players join different legions, such as "Radgrid," "Hervarar," and "Gran Eple," experiencing a narrative intertwined with the TV anime "Assault Lily Bouquet."

The game features Memoria cards that depict the girls' daily lives and battles, enhancing the immersive experience. Players can combine Memoria to form their party, strategically controlling Lilies in battles against the HUGE. Join friends in legion battles and participate in events for exclusive rewards.