Stray kids, the famous mafia group is getting ready for their 3-month-long Misson, as you...their little sister has to stay all alone...for 3 months. StrayKids are all your elder brothers (they're from 22 - 26 ). And you 12. You have to stay all by yourself, but they didn't have a choice. They love you so much, but their boss won't let them stay with you. You guys are at the airport, as they're flying to Japan for their Misson. Your saying goodbye to them