Fairy Tail: The Fourth Master

Dragneel Island, Natsu's House....

After the group finished eating, they quickly did their own business, some rested, some took a nap, some were outside, taking a fresh air.

Kagura was leaning against a tree with her arms folded while she was looking at the sky, Ultear was sitting beside her, leaning on the tree with her eyes close and a smile on her face.

Suddenly, Mirajane went out and walked towards the two of them, she had this serious look on her face.

"Kagura, Ultear, can we talk?"

Kagura raised an eyebrow but nodded her head, "What do you want to talk about?"

"Follow me." Mira said as she walked deeper in the forest, Kagura narrowed her eyes but followed her nonetheless.

"You two go ahead, I'll stay here and rest." Ultear just waved her hand, not bothering to look at them, or even open her eyes at all.

Kagura followed after Mira until they stopped in a pretty large open space, Mira turned around and faced Kagura with a serious expression, her smile was not present on her face.

"What do you want to talk about?" Kagura asked, she was staring at Mirajane with a stoic face.

"What are your, and Ultear's relationship with Natsu?"

"Huh?" Kagura was caught off guard by her question, she shook her head and walk away, "This is pointless, I don't have to answer you."

However, before she could walk away, a Mira released a powerful magic power that caused Kagura to stopped moving.

"Tell me."

"...fine." Kagura turned around and faced her with her usual stoic look, "Girlfriends, lovers, mates, whatever you call it, are you satisfied now?"

Mira's eyes widened in disbelief, "...the two of you?"

"Four of us, actually."

"Wha-? That's, improper!" Mira exclaimed, she wasn't really a fan of polygamy even though its quite common.

"I hate it too you know? But what can I do? Years ago, the four of us even fought, not fought like using words, or who can make Natsu happy, not like that, we fought with magic, attacking each other like our lives depend on it. Hisui, one of us, even used a spell that requires three person to cast, alone, and it almost cost her life, Natsu was pretty mad to us when he heard that, he wasn't even talking to us nor even sparing us a glance."

"So...you agreed to share him?"

"Pretty much, any of us couldn't keep him ourselves anyway." Kagura said before sighing and walk away.

"I can do it."

Kagura stopped, she looked over her shoulder and narrowed her eyes, "What did you say?"

"I can take him for myself, I alone is enough for him." Mira said with a smile, a smile that is completely different from the one she usually wore, "Even if I have to beat the four of you, I will have him, I won't allow him to continue having an 'unhealthy' relationship."

Kagura let out a smirk as she faced her, "Even Fiana couldn't do that, and she's a wizard saint, much less you. Do you think that the four of us agreed to be with him together willingly?"

She stared at Mirajane before continuing, "Of course not! Even until now, we are still fighting for him, but after all the fights we had, we knew one thing, no matter what, one girl alone isn't enough for him."

Mirajane narrowed her eyes, she released all of her magic power that it causes the air shake.

Kagura just brushed off her aura and continue, "The reason why we agreed to share him isn't because of some excuse like 'I am not enough for you' or anything like that, we aren't thinking like that, we are just like you, thinking that we can take Natsu for ourselves, but it was impossible."

"Hisui is the one to help him relax, to ease his mind and make him forget about all the problems he was facing. Fiana helps him to satisfy his d.e.s.i.r.e for battle, to satisfy his d.e.s.i.r.e for adventure and add a spice to his life. Ultear was always spoiling him, doing his work for him, always agreeing to his words. While I am the one that always stops him from making a stupid decision, showing him the easiest path he needed to walk."

Then, Kagura's eyes showed her anger as she released all of her magic power, surpassing Mirajane's by a large margin.

"And you, you think that you alone can take him for yourself? Stop dreaming, we have been doing that for the last seven years with no result, making us agree to just share him."

"I can do all of that, I can help him relax, I can go with him if he decided to have an adventure, I can spoil him, I can also stop him from making any stupid decisions. I can do everything the four of you can, alone!"

Kagura furrowed her brows, "Very well, let's see what you got. If you beat me, then the four of us won't interfere on what you do, but if you lose, just give up and move on."

"That's your words, don't regret it."

"I have never regretted my actions, not once, not ever."

"Good, be prepared. Take Over: Satan Soul!" Then, Mirajane's eyes, eyelashes, ears, and hair all change drastically, and dark, thin markings appear all over her body.

Her forearms and hands become covered in scales, and each sprouts a fin-like protrusion on its outer side. She also grows a large, stocky tail, seemingly made of metal plates or scales.

Her clothing also changes, replaced by a dark, skimpy one-piece suit revealing her arms and legs, which is open on the front and the back, exposing most of her belly, wide cleavage and upper back too.

She also dons a pair of gauntlets covering the back parts of her transformed arms.

Her magic power became tangible, covering her in purple aura.

Kagura was a bit surprised, she already improved so much with only three months of training.

'Well, she has been fighting a saint-class beast so its to be expected...however..'

"Its not enough to defeat me." Her magic power exploded from her body, it was so strong that even the people back Natsu's house felt her tremendous magic power.

She glared at Mirajane and said,

"Try not to die, or else Natsu will get mad at me."