Arrival at the Sand Star!! - S4.E20

As Galaxy Nauts Gou gets ready to be warped, Tetsukado notices that there is another person on the train. The members of Earth Eleven then begin the search but there aren't any traces of another person. Then, they arrive to the last place which is the canteen. To their surprise, the one they were searching for is actually a member of Raimon, Nishizono Shinsuke. What are they going to do now that Shinsuke tagged along with them?