there are some situations which surprise you with sex in this game. this may happen a lot if you are unprepared.
there are very few true futa (as in, with penis, vagina, anus, breasts) most of which are either newhalf (penis, balls, anus, breasts) or otokonoko. typical males and females are few and far between.
the game involves stance-based combat, which allows for different actions based on the current stance. most fights start you in 'balanced' stance, which has a lot of options for attack or defense. for example, in this stance, you can use 'Spring Attack', which deals good damage to the MID part of the enemy and puts you in Offensive stance. from there you have, depending on the skills you have, very few defensive options with a plethora of damaging moves. it's not as complicated as it sounds, and there are also sexual stances that you can take yourself, or be forced into depending on current circumstance during the fight.