"Maya likes you too, big brother..." MAX-A's popular drama series "Sister's Secret" is back! What if Maya Hashimoto was the "Ke'ai little sister"? She's pushed down by an excited classmate and in big trouble! "If I do this, I'll end up hating you..." but it feels good... "Just a little bit, okay?" Her brother has a secret! When he wakes up in the morning, he finds Maya playing with his brother's crotch...?! "Ah, you're finally awake... You can't take it anymore, big brother, can you?" Is this a dream?! My little sister is so Ke'ai that I might not be able to take it anymore...