Mitsuba, Okita’s older sister, pays a visit to the Shinsegumi headquarters to announce her marriage. The squad members are shocked to see Okita’s change in attitude when in front of Mitsuba. The two spend some time together for the first time in years. Mitsuba, who has always looked after her younger brother since he was little, is worried if Okita is doing fine in the Shinsengumi. In order to reassure his sister, Okita introduces his “best friend” Gintoki to Mitsuba, but...
If he hangs around with people like me, nothing good is going to happen.
Si se junta con gente como yo, 
no le pasará nada bueno.
Se andar com gente feito eu,
 nada de bom vai acontecer.