Reuben

ルーベン

Experiment 625, created by Jumba. For further details, this character is introduced in the movies and the series. He accompanied Gantu on his journey to Earth to purchase sandwich ingredients on Izayoi, but bread was sold out everywhere. When he was depressed, he met Yuna's grandmother and asked her to make rice balls (sandwiches that do not use bread) using the sandwich ingredients he had. He has come to enjoy making onigiri since then. However, after the second period, the depiction returns to normal as if nothing had happened, and he is once again absorbed in making sandwiches. He also showed consideration, such as giving presents to Dr. Hämsterviel and Gantu. From the third series, he is often punished by Delia along with Hämsterviel.