Chatting with GameSpot, the release's director, Hajime Tabata, comments on the all-male party, and how the group's dynamic is only achievable without the presence of a female character. "Speaking honestly, an all-male party feels almost more approachable for players. Even the presence of one female in the group will change their behaviour, so that they'll act differently. So to give the most natural feeling, to make them feel sincere and honest, having them all the same gender made sense in that way," he said.
For Tabata, the journey will have the cast adopting what he dubs a "boys will be boys" type demeanor. "It was the story we wanted to tell and what we wanted to show players," he explained.
"The world might be ready to see the curtain lifted on what boys do when girls aren't around, when they come out of the tent all prim and proper. That's kind of the idea behind it we think, male or female player, that everyone will feel a certain connection and bond with the four characters.
Rest of Gamespot Interview here.