During rehearsals, Carlos, who's a trained fighter, threw a friendly punch at Filipe and ended up almost breaking his ribs.
With the beginning of the war in Ukraine in 2022, Filipe Amorim decided to write a script involving the complexities of martial conflicts. In conversations with Rodrigo Tavares, the director, they thought it would be interesting to set the story in a boxing gym - two people arguing about battles while battling.