After helping Yosshi arrange a date, the Sket-dan run into Shinzou arguing with his younger brother. Unlike the proper samurai, his younger brother is rebellious and they don't seem to get along... The two's relationship reminds Switch of his own brother and the events of the past...
We were in the same schools from 
kindergarten on, but since this spring,
Habíamos estado juntos desde el jardín 
de niños, pero a partir de esta primavera,
Habíamos estado juntos desde el jardín 
de niños, pero a partir de esta primavera,
Desde o jardim de infância, 
frequentávamos a mesma escola,