Summer! Swimsuits! The beach! Illya and the others enjoy the beach to fullest, playing along the shore and celebrating their birthday in a beach hut♪ But the popsicle seller they encounter there turns out to be the fierce foe they fought a hard pressed battle against... And to make matters worse, Ruby adds a Love Potion that makes Shirou go crazy! Will Illya's desires come to fruition in an unexpected way?!
We would never interfere in another's...
Wir haben uns nie in
das Liebesleben anderer …
Nunca interferiríamos con 
el romance de alguien más...
Nunca interferiríamos 
en el romance de nadie...
On n’aurait jamais nui
à l’amour d’une autre.
Non abbiamo mai rovinato la vita amor—
Nós nunca interferimos
 com a vida amorosa—