At dinner time, both Alduos and Renz joined them as per Carina's invitation. Since Renz is already acquainted with the elder Nagasaki couple, he had no trouble connecting with them through engaging talks. On the other hand, it was Alduos' first time to directly meet the couple, which is why he was so stiff the entire night due to his nerves.
Hidetsugu and Rachel, however, were both waiting for the perfect moment to butt in in their conversation or make their presence known. Although they wanted to, they could not understand the majority of the conversation because they were all talking in other languages, switching seamlessly from one to another. How can the two of them relate? They are not even sure what language they were talking to most of the time.