Chapter 4

Mephisto was angry. And when he was angry, he got deadly. Alarms woken everyone up at dawn. The place was swarmed with demons again. The chairman killed any creature unfortunate to get on his path. His eyes were blazing with wrath, his spells and fire destroying everything. He moved with a cat grace, dodging any attack and moving fast through the sea of fighters. Anyone close enough could feel his power radiating from him.

He was furious with his father. How could the bastard sent so many demons to his school? It was his beloved playground! He will be damned if he let Satan, or anyone else for that matter, destroy his toys. He was the only one who could play with them and the only one who could dispose of any he didn't find it amusing anymore. So Mephisto fought with hate, feral expression on his face.

Alongside him was Amaimon, who always kept close to his brother. The difference between them was impossible to miss. While Mephisto was fighting with anger, his face grim and moves sharp, Amaimon looked like a kid to whom Christmas came early. He laughed and grinned, slashing at everything and admiring the blood that flowed everywhere. He loved the act of destruction.

"Ha! Did you see that, brother? I got him good!" He prattled on, not minding that no one was listening.

Rin observed the pair for a moment, looking in awe at the power the stupid clown possessed. He knew he never wanted to made him angry.

"Yo, otouto! Come play with me!" Amaimon shouted, spotting him. He vividly gestured for him to get closer and Rin obliged. He couldn't find amusement in the war like the Earth King did but he sure could use some help. Getting side by side with him he couldn't help but smile a little, answering the stupid grin. He could move freely now as Yukio promised to protect Bon, while he was chanting. Rin trusted his brother without a doubt so he fell into Amaimon's rhythm, many hours of their fighting together coming in handy.

In a break Yukio had between destroying another creature, he could finally take a deep breath and try to ease some stress from his tired muscles. He looked at his brother, who was easy to spot even in the frenzy of the battle. His blue flames were making their way between allies, killing weaker demons instantly. He and Amaimon worked so good together it was hard not to admire them. They protected each other's backs, moving together to attack if necessary or suddenly changing tactic to surround the enemy or take it's attention long enough to destroy it.

Rin was fighting furiously, blocking a white demon's claws from tearing at his throat and sending it flying. Amaimon easily took it down and grinned his silly smile again. Exhaustion in Rin's body was a constant now, so he tried to ignore it but he had to admit that he was losing his strength. He knew he won't be able to fight like that for long.

Suddenly, he felt strange drowsiness. Like he was falling deep into water, something pulling him down. He was drowning, suffocating. Panicked, he tried to open his eyes, tried to breath deeply but he only saw darkness around him.

"Rin!" He felt like someone was shouting his name from a long distance, only a fading voice getting to him. "Rin!"

And then he felt like fainting, because he heard some other voice. This one was clear and loud, like the person was speaking directly to his ear.

"Rin my son did you miss me?" Laughter filled his head and he realized the voice spoken using his own mouth. He tried to open his eyes again and this time succeeded. He could see everything but couldn't control his body. Someone else was using it. Satan. His blood boiled in anger. How dare he posses him? He tried to fight him off but was too exhausted to do it.

He focused on what was happening and noticed that the fight stopped. Every demon moved to his side. He gained attention of everyone.

"I just dropped in to say hi." More mad laughter fell from his lips. Rin felt sick. "I believe you are at your limits, humans. So I have a deal for you. Open a big Gehenna gate and let our worlds mix together then I promise you I will rule it fairly! The demons won't attack humans unless you rebel. If you refuse, I will destroy you all! I will need a body in this world so I believe my dear son here could lend me his." He laughed again, checking Rin's arms and stretching lazily.

Yukio snapped out of his shock and run to Rin's side.

"Get out of my Nii-san's head, you bastard!" He shouted, aiming his two guns at him.

"My other son appeared! Such a lovely family reunion!" He said with fake glee, his grin too wide, unnaturally stretching Rin's face. "Are you going to shot at your father? At your only brother?" He asked with malice.

Yukio realized too late that he indeed shouldn't shoot but managed to only get his shoulder, changing aim at the last second. Satan gasped, more surprised than pained but then Rin felt the pain and screamed inside his head.

"You idiot, don't damage my new body! He's the only one who can survive my touch!" He snapped at him and attacked.

Yukio tried shooting again, apologizing in his mind to his brother. But he missed and found himself pinned down. He looked into mad eyes above him. Something old and malicious was looking back at him through his brother's eyes. He couldn't imagine how Rin could feel right now. Was he even aware what was happening to him?

"Now, now, we can't have that. I have only his body to use, as you are fully human, you'd die like anything else I touch. I believe you will be a great example of what happens when someone oppose me. And it will keep my dearest demon son's mood down so he won't fight me when I posses him again." He showed his sharp teeth in warning.

Rin was trashing around in his mind, shouting and snarling, trying to take back control. He looked down at Yukio, his brother pained face as his own hands were closing over his neck.

Someone tried to help the exorcist but got burned in blue flames. It was impossible for anyone to get through them and demons suddenly standing guard didn't help. Yukio was getting weaker and weaker, air slowly slipping out of his lungs. Satan enjoyed watching as his life was escaping him little by little.

"I hope you enjoy the show just as much as I do Rin!" Satan taunted him, adding a few painful burns to Yukio's body, while still cutting out his oxygen. He could still get a little air but had to really make an effort to do so. He was losing strength and fast. He closed his eyes to block the feral eyes.

Rin truly panicked when he saw his brother's eyes dropping. No, it was not happening! Satan wasn't just killing his only family with his own hands. No no no noooo!

With pure adrenaline rushing down his veins Rin shouted and pushed. With all his might. With all his anger, hatred. With all his love for his brother.

At first he only heard a mad shout and saw blue flames everywhere. They were the first he took control of, so before they could damage Yukio more he snuffed them out.

"You stupid brat, you think you will be able to stop me?"

Slowly, painfully, after trashing and pushing, he got control over his hands. He concentrated on them the most and managed to let go of Yukio neck. Dark, red fingerprints marked it.

He heard an angry voice of Satan, swearing at him and promising revenge but he ignored it, refusing to even reply. Finally, finally he was himself again. His body was under his own control and there was no presence in his mind. He fell down to his knees, exhausted beyond belief. But he had to make sure he didn't kill his own brother first. He kept conscious by sheer force of will.

"Yukio?" His voice was raspy and weak, like all the screaming he did in his mind actually went through his throat. "Please Yukio be alive." He put his hand in front of his brother's parted lips, looking of any sign of breathing. For any sign of life. "Please, please Yukio…"

He felt a breath on his hand and knew. Yukio was indeed alive. Everything started moving around him. Someone finally rushed to his side and the demons started to retreat, realizing their master was gone.

"Don't worry Rin, Yuki-chan will be alright." Shiemi said gently, summoning her Nii-chan and treating slight burns Yukio got. Rin managed a weak smile and fainted, letting his exhaustion finally claim him. He heard Bon's voice shouting his name and then everything went black.

When he came to, he was lying in his bed, alone. He groaned, feeling his muscles protesting. Looking around he didn't notice anyone. Bon wasn't there with him. Rin closed his eyes in exhaustion.

Getting your mind possessed by the devil himself was the worst feeling you could feel. Rin was tired not only physically but mostly mentally. He was sure that he wouldn't be able to get rid of Satan again. He shook in dread, thinking that soon he will have to watch his loved ones and friends getting killed by his own hands, while he sits there and screams.

"God, please… If you are out there somewhere, if you can hear me… Please, help us. I'm too weak to fight, we are all at our limits. Soon, Satan will rule this world as well and it will become dark. Please, give me strength to protect everyone…" Rin never truly prayed before, but feeling such despair gripping at his heart, he wanted to give himself some hope. He closed his eyes again. He never really believed in God, even though he grew up at the monastery. His wishes were never granted when he was a child, always being alone and bullied, that he stopped thinking there was something out there that could help him in need.

"We heard your plea, young soul." A deep voice resonated around him. It felt warm but firm, gentle yet so strong. Rin's eyes snapped open and fell on the figure standing at his bedside. He gasped in shock, his mouth falling open. He couldn't believe his eyes. Was he still dreaming? Or did Satan's visit completely messed with his head?

"Uh…" He wasn't even able to say anything. Brilliant smile answered his shocked face.

Before him, in all his golden glory stood an angel. His white wings were spread, beautiful to look at. Feathers looked soft and fluffy, yet the wings were obviously strong and not easily destroyed. Anyone finding himself hugged by them would surely feel safe and protected. The man was stunning as well. His face, surrounded by golden locks, was handsome and adorned with two jewel-like, emerald eyes. His body was slim and slightly muscled, showing a strength in his arms and legs. The angel's clothes were also white, a shirt creamy and pants brighter. On his shoulders there was a blue coat. At his belt he had a sword. His hands had golden ornaments and on his chest was a chain mail, also golden.

Rin finally found his voice.

"Who are you?"

"I am Gabriel, the archangel. God sent me with a message for you, in answer to your prayers." Melodic voice answered him. "He knows you are a good soul, even though your father is Satan himself. You have goodness in you and you are asking for strength to fight and help. The devil has broken the contract. If he stayed away from Assiah, if he kept his demons at bay he could live. But now that it's broken, he needs to be taken down."

"I… I don't know what to say… Thank you?" Rin was lost, what does a half demon say to an angel?

"You don't have to thank me yet. God will sent more angels to protect this Academy, as obviously it is a main point of attacks. There is a deal for you to accept, if you wish to defeat Satan. It's not something that comes without the price." The angel warned and seeing he got his full attention, explained. "If you wish to have God's power at your disposal, as you have your flames, you will need to die first."

Rin gasped. Does that mean he won't be able to stay on Earth? Does that mean he will go to hell and after fighting and by some miracle winning, he would have to stay there? His head was full of questions.

"Die? The sacrifice to win against Satan is my own life?" He asked in disbelief. Wasn't that a little bit too cruel?

The angel nodded, his smile disappearing. "I will explain all of the details. If you wish, you may not take the deal. The angels will still come to your aid but we can only stop Satan from attacking and make him retreat. Only you or your brother would be able to defeat him."