"He was your what?" N screamed.

"Chill..." Leo said.

"Ken was your ex?" N asked, lowering his volume.

"Yes he was. And..you have the right to overeact..." Leo mumbled.

"Why?" N asked.

"He'll get angry if he knows I have another boyfriend. We broke up when he was suspended because of my parents. My parents forced me to break up with him because he was bad. And now that he met you, he knows you, he'll just revenge on you." Leo explained.

N blinked at him then he remembered that guy from last night. "It was him..." 

"It was who?" Hyuk asked.

"Someone followed us last night. It's Ken, it must be him." N said.

"He followed you?!" Leo asked, getting nervous.

"He knows. He knows our relationship now! We were together last night. He must have seen us three ." N said.

"WHAT?!" Leo shouted.

"What shall we do?" N asked, afraid.

"I don't know. Hopefully he doesn't do anything." Leo said.

There was a long silence.

"Don't worry, I'll protect you. You are the one I love, and...nothing will change that." Leo broke the ice. N nodded.

The next day when Hyuk and N arrived, they met Ken by the gate. Leo wasn't around yet so they walked past him quietly.

"YAH!" Ken shouted at them.

N and Hyuk stopped to look at him.

"Follow me." Ken told them and went off.

N looked at Hyuk and signalled him to go and find Leo. Hyuk ran off while N followed Ken. They were in the same area, the back of the school. The place where N told Leo about his family.

"As you know now. I am an ex-convict, suspended from school, Leo's boyfriend." Ken said. N watched his movement quietly.

"But now, we broke up and he got you. You are now his boyfriend. His life partner number 2." He continued.

"What do you want, Ken?" N asked, trying his best not to be afraid.

"I'm jealous. Jealous that you have Leo instead. And I want to ask you, how? How did you get Leo over to your side. The bright, cheerful side when he is originally quiet and violent." Ken said angirly.

"He doesn't want to become violent. It's not his real side. He doesn't want to be quiet, he only doesn't have friends. But now, he changed. Because he wanted to." N said.

"No, it was because you were there. Because you exist in his life. If you weren't here, do you think Leo will come back to me?" Ken asked and cracked his knuckles.

N inched backwards slowly. Ken's fist swung in the air and N shut his eyes tight. He waited for the feeling but it didn't come. He opened his eyes to see Ken's fist hovering in the air. It was Leo. Leo caught him just before he hit N.

"Ken, we've agreed to it." Leo said sternly.

"What is this? A hero saving a damsel in distress?" Ken asked and gave a glare to Leo.

"Back off before we start a real fight." Leo said and grabbed N away from Ken. 

Leo took N to the toilet and they stayed there in silent for a few seconds.

"Are you okay?" Leo asked N who was in a state of shock.

"Y..Yeah..I think so.." N mumbled.

"That was close. Ken would have punched you twice if I hadn't been there." Leo sighed.

"Where's Hyuk?" N asked.

"In class. He came to me panting and told me about you and Ken. I told him to wait in class." Leo said.

"Let's go back. He'll be worried if we're not back yet." N told him.

They went back to class and saw Ken seated there already. But it wasn't his usual seat, he was siting beside a girl at the far corner. Their homeroom teacher was in the classroom when they arrived too.

"Haekyeon, Ken made a request to sit in the corner so you can return back to your seat." Their teacher told N.

"I don't want to invade their personal space." Ken added from his seat.

Leo pulled N with him and they sat down. Hyuk turned back to them and asked worriedly, "Did anything happened? Ken hyung is acting weird now."

"I told him to back off." Leo said and then turned to N, "He wouldn't bother you for a few days from now. Like I said, I'll protect you." 

"Thank you.." N thanked him.

A/N: After two or three days, I got this idea. I will have to think of a way to make it more interesting, please continue to support my stories!