A story exploring the life of the girls of Lucky Star had they met a boy who finds common ground with them and joins their group. How different would their high school experience be with him around?

Three years following his harrowing adventure Ryan Riley, now fifteen, is thrust back into the world of Digimon. An even more powerful evil is now out to destroy him and the tamers though the latter are entirely unaware of the impending danger, having been disbanded for over a year. Can Ryan warn them in time or will he be too late? Will good or evil prevail?