Sponsors are the financial backbone of sumo stables. Raijin stable's sponsor is the chairman of the board and administrator of a huge hospital, Ueda-sensei. Master Raijin, Inokawa and Tatsunokawa get invited to Ueda-sensei's daughter's wedding, but the two main wrestlers are in Hawaii on a sumo-tour. Master decides to take Matsutaro to the wedding instead, but ... what a dangerous decision for the master to make.
That's right. I'm Yurara, the daughter 
of Uehara General Hospital.
Das ist richtig. Ich bin Yurara,
die Tochter von Uehara-sensei.
Así es. Soy Yurara, la hija del 
director del Hospital General Uehara.
Así es. Soy Yurara, la hija del 
director del Hospital General Uehara.
Isso mesmo. Sou Yurara, filha do Doutor
 Uehara do Hospital Geral Uehara.