more than a jealous friend?

Evelyn and Johnny have such a strong bond to each other. They have the greatest friendship in the whole school. Some people think they are siblings, some think they are a couple. But one day...
They attend the International Academy for Art for young singers, dancers, rappers, actors and even artists. Johnny decides to introduce one of his best friends to Evelyn, Jung Jaehyun, a dancer, singer and even part-time rapper. Johnny wants them to get close and wants someone to take care of Eve besides him. His plan works but suddenly, as both of them get closer, Johnny starts to act weird. Has he changed his mind, or the feelings on his heart?
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Disclaimer: NCT 127 (ot7+ Johnny & Doyoung due their trainee years) will soon debut with Fire Truck. They all attend the same school to practice and are in their current age. In case you are wondering. lol. enjoy :)

PS: please ignore the mistakes