Notes: Hey everyone! This idea was suggested to me by catpupille! Thank you! I'm going to write this alongside with my next project since this one will consist of about six chapters~ I'll be honest and say that this is a tough prompt ;u; but I will tackle it head on and try! I hope it'll turn out okay ;u;

About the story: This is [MMxIS]. The classes I'm planning to use...will range. Generally, they will be the... "thug" looking classes. Except for MM and ATH. I'll make sure to mention what classes they are when they show up.I'm gonna say that MM is 21 and IS is 18 but you can imagine whatever age you want them to be. Here we go~

Add's Method

Chapter 1: Question

"Yes, yes! This is quite fascinating!" Add exclaimed as he examined a tiny dark purple el shard within a glass cylinder. It was powering up a light at the top of the strange contraption. "Now to- " PLINK! The shard had shattered into tiny glittering pieces. "Damn it." That was the four hundred and twenty third shard...this week. "Why does it keep on breaking?!" Add raged as he pulled on his white long locks of hair. "Is it not large enough?! But where am I going to get a shard large enough to—" At that moment, Add saw Elsword standing outside his window speaking to Ain. "Hmm...yes...yes...that's brilliant!" He rushed outside.

"Are you okay, Elsword?" Ain asked. It was difficult to tell if he was showing genuine concern or not due to his impassive face.

"Hm...oh yeah, I'm fine...I'm just...tired, that's all," Elsword replied as he averted his eyes. He hated how Ain could see right through him.

"Are you sure?"

"Yeah, yeah."

"Oi, Elbr—I mean Elsword, come here for a minute," Add interrupted. He was hiding behind the hotel corner wall waving his hand for Elsword to come.

Elsword was glad for the intervention. He glanced back at Ain who had suspicion written across his face. Elsword walked over and stood facing Add with his arms crossed. "What's up?" It was unusual to see Add outside for he stayed cooped up in his room all the time. No wonder he's as pale as paper. Add stared straight into Elsword's crimson eyes.

This caused Elsword to feel somewhat uncomfortable. Add didn't talk to him much unless... 'Oh god no...not another experiment!' Elsword thought. He soon regretted ever coming over.

"I need your...help," Add blushed as he gazed down at the floor. He hated asking for help...especially from Elsword. If there was something he could do by himself, he would do it. 'If you want something done right, do it yourself,' was his motto.

"Aw man, come on...not another experiment!?" Elsword complained. He shivered as he remembered the time Add wanted to test out the reactions of a slimy plant with many vines. Never again. He got ready to run.

"This time, you're the only one who can do it! No one else fits the bill. It's...about the dark El."

Elsword's face fell and his legs felt frozen in place. "...Oh. W-what about it?" If Add found out about what was going on with him...he would never hear the end of it from Ain. In fact...Ain warned him not to absorb the dark El...but he did it...to save his comrades. However, he didn't expect the side effects would be this strong...

"I'm curious about the energy it emits. How is dark El different from other kinds of Els? Why does it seem that dark El grants an abundant amount of energy? Why has it become a source of some kind of inner power when absorbed or applied to living creatures? Why can't any other El be absorbed and used in the same way? What makes dark El so special?"

"Uhh...so basically...you just wanna know more about the dark El? Can't you just use shards for it?"

"I did. One thousand and sixty-three of them in total this month. They all shattered. So I thought, why don't I observe a living creature who co-exists with the dark El? And...I can't exactly capture a demon and keep it captive now...can I?" Add glanced at Ain. "Lu and Ciel don't seem to use dark El. It's like an entirely different power. So, since you absorbed it and are approachable..." Add said the last part in a quiet voice.

Elsword gazed at the far distance. His sister, Elesis, had as well, absorbed dark El but, she had disappeared somewhere in a maddened craze. The rest of the el gang had been looking for her but she was nowhere to be found. "...I rather not..."

Add mused for a bit before hitting the palm of his hand with his fist. "I could find a cure!" Add's words sounded confident.

Elsword's eyes widened. A short silence hoovered over them. He then stared at Add. He searched his magenta eyes for deceit. But, they were as clear as glass. After a moment of thought, he complied. "Alright, what do I have to do?"

"Yes! I mean...of course, of course. Come with me and we'll run some tests and—"

Elsword zoned out as Add went on and on about all the things they were going to do. 'What have I gotten myself into?'