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?!
Relationship? Well, we're 
just ordinary friends, right?
Zueinanderstehen?
Wir sind nur Freunde, nichts weiter.
¿Relación? No somos más que amigos, ¿no?
¿Relación? No somos más que amigos, ¿no?
Notre relation, hein ?
Che tipo di relazione? 
Beh! Siamo dei normali amici, no?
Relação? Bem, nós só somos
 amigos normais, não é?