Spring break. Futaro is trying to keep a distance from the sisters, but he runs into them during a family vacation at a hot spring hotel.
Ichika's the only one who 
calls her Itsuki-chan!
¡Solo Ichika la llama "Itsuki-chan"!
¡Solo Ichika la llama "Itsuki-chan"!
Ichika è l'unica che la chiama Itsuki-chan!
Apenas a Ichika a chama de Itsuki-chan!
Так её имя произносит только Итика!