Daily Life With My Tsundere Little Sister! - Ch. 10 - Little Sister and Her Fan

[MangaDex]

 

[Zmegatrolls]

the author also post some images on the irori.app website

 

[marghedsmet]

She didn't even fill those water balloons up all the way...

 

[koikun]

so now they are using "balloons" a bit late don't ya think

 

[starburst98]

@koikun
They didn't need them before.