memories (discontinued)

how would it be to live with someone else's memory?
Jisoo and Irene were sisters, they were really close to each other until they both became teenagers and got surrounded by different companies. Irene became the popular girl with some fake friends beside her just cause she was famous and she thought her friends would stay by her side forever , whereas Jisoo became the nerd of the school just cause she studied more and socialized less. Irene started ignoring Jisoo as her friends didn't like Jisoo and she was afraid that they'll leave her if they find out she is her sister . What will happen if Irene finds out the truth behind her friends ? Will she be able to accept the truth and live on or leave her sister and family alone ? Will she still be alive in the eyes of other people and how?