Spring is here and the graduating students are planning a trip to sunny Okinawa.
Shizuku and Honoka have invited Miyuki and Tatsuya to a party that sounds like the
perfect opportunity to relax for once. It sadly won’t be all fun and games because the
siblings have also been tasked with stopping a terrorist plot while they’re in the south
islands. What are the chances? Romance is in the air and danger is on the horizon-this
is sure to be a vacation to remember!