The little brother going "Why do I have to put up with this just because big sis likes someone?"
More like he has never seen her act like this and is not sure what to do with her.
If I really let it out of my mouth...What a pain...Then I won't be able to hold a lot of... more like, everything back.(Resignation)After all...OHH!!Ahh...H...HUH!?*Tremble tremble*AaaahI...I don't like him at all!?*Flail**Flail**Squeeze...!*But still...I can't believe that you seriously like someone, Nee-chan...