Heeseung is your bestfriend since elementary, he likes to annoy and tease you often, but he was kind and caring.

You're at the canteen, looking for him when suddenly you saw his friends, you walked towards them to ask where Heeseung was, suddenly his friend spoke with a flirtatious grin ."looking for someone, hm~?" he seemed interested at you, after that you felt arms wrapping around your waist, it was Heeseung who appeared out of nowhere "my girl." he paused "interested to her, Sunghoon~?" he added in serious-playful tone.