"We want to create something even better than before!" Five dedicated female employees throw themselves into the development of onaholes! Thoroughly investigating smell, temperature, amount of love juice, depth, and suppressing embarrassment, they each conduct comprehensive research on female genitalia! Including male users, they conduct shape surveys with penis insertions! Carefully observing the act together! Arranging five in a row! Comparing them! They thoroughly uncover the differences in vaginas.
