Are high-school girls Nanoha and Chidori ready to face the storms in their new romantic relationship together? In the midst of their first beach trip as a couple, Nanoha and Chidori enjoy some fun in the sun. But trouble awaits them at home--the older girl who broke Chidori's heart is back in town! Perilous storms may threaten to ruin their perfect summer vacation, but after every storm, a rainbow kisses the horizon. In the midst of their first beach trip as a couple, Nanoha and Chidori enjoy some fun in the sun. But trouble awaits them at home--the older girl who broke Chidori's heart is back in town! Perilous storms may threaten to ruin their perfect summer vacation, but after every storm, a rainbow kisses the horizon.