you're the youngest in the Komi family

You had a big sister named Shouko and an older brother named Shousuke, your family was very quiet except your mother, she was an extrovert

Your big sister studies at Itan Private High school and has made some few friends

Winter soon arrived and your big sister wanted to buy some gifts for her friends so you, your brother and sister went to the mall

When your big sister wanted to buy something, as refusal, your brother walked out of the mall

In the end the shopping was over and you all were at the checkout

Cashier 👩‍💼 : "So, is this for a friend or yourself?"

Shouko 🔇 : She wanted to say it's for her friends but failed and started shaking and stuttering