Brothers Aki and Shima are upset by the sudden appearance of a "fourth brother" in the Kaidou family, and Haru's excessively affectionate attitude towards Ren makes Aki explode with rage. Meanwhile, Haru happens to witness a car accident in the city. Since then, Haru begins leaving Ren alone in the apartment. On top of that, while Ren is home alone, one of Haru's customers from the host club forces her way into the apartment, and--?!
Come to think of it, they did 
take a trip there together.
Stimmt … Sie sind
ja mal dorthin verreist.
Ahora que lo pienso,
 sí fueron allí juntos.
Ahora que lo pienso,
 sí fueron allí juntos.
A pensarci bene, 
ci andarono insieme una volta.
Pensando bem, os dois já foram viajar sozinhos.