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.
I'm the only child of a major hospital's chairman.
Ich bin das einzige Kind
eines Krankenhausvorsitzenden.
Soy la hija única del 
director de un hospital.
Soy la hija única del 
director de un hospital.
Eu sou filha única do diretor
 de um grande hospital.