Pop star Ai Hoshino's twin babies Aqua and Ruby--two kids with surprising "pasts"--are basking in all the attention from their idol mother. But that bliss doesn't last long, as tragedy strikes...and alters the twins' ambitions and livelihoods!

The grand finale of the sweet "aww"-inspiring tale of school life! As Hori and Miyamura's graduation approaches, Miyamura reflects on how much has changed over the years. Meanwhile, Souta and Yuuna's future in high school looks bright...and the beginning of Hori's is revealed.