Two suggestions
1. Male Lewdroids? (Basically self explanatory, male Lewdroids.)
2. Make the main character look more robotic. (He DID come form a robot, so maybe have an option in the settings or before the game starts, also maybe he might act different)
Please note: I have played the game, but not finished it. So I don't know if it nullified the two suggestions for plot reasons, but it's worth a shot.