On a rainy day, the elite salaryman Amakusa Ryo almost falls down some stairs when he is saved by an ordinary high school girl named Arima Ichika. Ryo was dizzy from not eating breakfast, which worries Ichika and she offers him her lunch then runs off. Later when Ryo gets home, Ichika is in his living room and he finds out that she is actually his sister Rio's classmate. Ryo wants to thank Ichika for saving his life and offers to kiss her...
How dare you interrupt 
my time with Ichika-san?
كيف تجرئين على مقاطعة وقتي مع إيتشيكا-سان؟
Wie konntest du es wagen, mich zu stören,
während ich mit Ichika meine Zeit verbrachte?
¿Cómo te atreves a molestarme
cuando estoy con Ichika?
¿Cómo te atreves a molestarme
cuando estoy con Ichika?
T’as osé gâcher
mon précieux temps avec Ichika !
Come osi intrometterti mentre sono con Ichika?
Como se atreve a interromper
meus momentos com a Ichika-san?
Как ты посмела помешать мне
общаться с Итикой?