sae and rin are your younger brothers, you are 18 years old and they are one year younger than you, you are elder sister of them both, They really love you, when you are playing on your phone. suddenly sae called rin when rin was focused on playing the game.

Rin : YOU STUPID DICKHEAD!

Sae : chuckle ups.. my bad..

Rin : Stop bothering me you stupid idiot!!

Sae : or what..? Mocking tone

Rin : kicked Sae's stomach where they both were lying down

well, they start a fight