It was a one fine spring day

You were on the infamous amusement park, Everland. Together with the other three staffs of your kindergarten where'd you worked at. Guiding twenty cute students for their little trip. Each of staff has five kids to be taken care of and you got Sena, Mirim, Haye, Jinsuk, and Sanghyun from your own homeroom.   "Ms. Kim! Lets ride that thing!" Jinsuk pointed at the Viking excitedly. "No! Its so scary! Too high! I'm afraid!" the little girls protested "Uh, girls. Why so annoying!" Jinsuk stomped his feet You smiled softly at them and squatted down "Jinsuk-ah, you can't ride that thing. Just... Not yet. Theres an age's minimum to ride that thing" Sanghyun sighed as he straighten his specs "Not fair" You chuckled at their cute behavior. "Just wait a bit longer. You will ride that someday with your friends. I promise it'll be much fun than now" "But I didn't scared at all, Ms. Kim! Can I still ride ittt? Pretty pleaaase?" Jinsuk batted his lashes "No, my dear. Listen to me, my little brother once barf after he ride it and many of his friends saw the incident, and they mocked him for a whole year. I felt bad for him but thats what happened to him when he still did what I forbid. You didn't want the same thing to happened to you right?" Jinsuk's eyes widen "Really? Poor hyung..."  "I know. Poor him... But he finally grown up now and he can ride anything on this park without barf at all! His friends back compliment him again. The power of growing up is so strong, oh?" you assured Jinsuk with an excited smile "Arraso" Jinsuk nodded. "I'll be back to ride a whole of this park ten years later!" "Me too!" Sanghyun added "Yeah, we think we could join you guys when we've grown up!" the girls clapped their hands with twinkling eyes "Alright~ know who wants ice cream? I was thinking about eating a super delicious pretzel and choco-mint ice cream. Who's in?" "Me, Ms. Kim! Me! Me! Me too!" the kids yelled as they raise their hands in the air "Okay! Let's find the ice cream-man! Go go!" you stood