Chaos grips the Elven Queendom as a massive, mysterious tower suddenly appears on the horizon. With Light's former ally Sasha as their guide, the White Knights - the queendom's strongest knightly order - march off to quell the threat. Little do they know that within, Light awaits with a fighting force of his own - and he's added the powerful gacha Iceheat, Mera, Jack, and Suzu to his ranks! The battle between sheer numbers and Level 9999 power begins!