The only silver lining she has is that its a brother not a sister, then again you never know
That's not fair, onii-chan!Ah.Woops, you were so small I didn't even notice you.What could those two be talking about...?You're such a good kid, Kumada-kun. But I won't let you have Sayaka.Sure, sure, now hold still please.Eh!? The've really gotten along!! When did they...Eh, but hold on...I'm not gonna lose!Sayaka felt the emotion of jealousy for the first time.