"Annyeong, Krystal!" Chanyeol greeted.  Krystal was quite taken aback by his greeting.  "De.. Annyeonghaseyeo" she greeted politely. "You can drop formalities and speak comfortably with me, you know" Chanyeol stated.  "It's okay, Chanyeol shi. Talking formally is comfortable for me" she rejected his offer.  "Ani! You may be comfortable but I'm not. It makes me feel distant if you talk formally to me so just use banmal, okay?" "De... Arraso, Chanyeol shi" "Just call me Chanyeol oppa. You're younger than me anyway" "De.. Arrasoyeo, Chanyeol oppa" she said awkwardly. "Good girl~~~" he said as he ruffled her hair.    He was enjoying this moment with her until a shout ruined the sweet atmosphere.    "Hyung! We're going to be late for basketball practice. Palli!!!!" It was Tao shouting from the other side of the corridor.    What a er, Chanyeol thought. "You go first, Zitao! I'll be right there!" he said unwillingly, "Krystal ah, I'm leaving first. See you!" Just like that Chanyeol ran to the gym and Krystal was left behind alone.      "Yah! Can't you see I'm talking with Krystal?" Chanyeol asked angrily as he entered the gym. "Of course, I can. Hyung was smiling like a weirdo at that time" "Yah! Hwang Zitao! You wanna die?" "Aniyeo. Not yet, hyung. I should marry first before I die. I don't want to be a bachelor ghost, hyung" he replied, half-jokingly. "Zitao, you're so dead today" Chanyeol threatened but Tao shrugged