It's been 7 years where he left the house for study abroad and the last time you remembered him when you and his sister were 12 years old.

Back to the present...

You're hanging out with your best friend at her house in that afternoon while scrolling through each other's phone when suddenly she mentioned about her brother and show you his before and after picture. She even said that he will come back home next week.

“Damn, he's big now. I wanna ride!”

“Oh? You wish you want to ride me? Later you'll experience it.” yes. apparently he had decided to come home earlier.