I thought it was S, but it might actually be M? Kento-kun seems to have been thinking about this recently. This time's partner, Machi-chan, seems to love to attack, so we carefully developed Kento-kun's nipples, which are still in the process of development, to develop them into erogenous zones ♪ Even though they are playful with each other's Kansai dialect, they don't want to give in to each other and are more and more serious about attacking each other. I'm so excited to see you in this mode☆