Gintoki is participating in the My Wife World Tournament so he can cure Shinpachi of his addiction to the romance simulation game Love Choris.  The tournament involves in-game dates with the heroines.  In the Momo group, Shinpachi uses a passive approach to dominate the other players!
Then I'll make sure you don't 
get lost by holding your hand.
Entonces me aseguraré de que no te pierdas tomándote de la mano.
Então, para você não se 
perder, vou segurar a sua mão.