Author's Note: Chapter 4. Enjoy.

IN THE INFINITY LIBRARY, WEDNESDAY AFTERNOON

The Head Librarian worked on processing the information from two dozen books which are hovering around him. His green Mid-Childa magic circle spun slowly while glowing.

"Yuuno-sensei? Are we disturbing you?" Subaru's face popped up in a transmitter along with the other forwards.

"Can you wait for a while, Subaru? I'll get to you in a minute."

"No problem!" The female forward grinned.

Yuuno sent the information he had gathered from the books to Chrono and he turned his attention to the blue-haired girl.

"What is it?" He asked.

"Well, Nanoha-san brought Vivio over to our training today and Vivio saw this programme on the television on Ancient Belka, and ever since that television programme broadcasted this morning, she has been pestering us to tell her about the Saint King. Carim-san, Verossa-san and Schach-san are here too, and they talked quite a lot about it but Vivio is still unsatisfied. Can you please come down to talk to Vivio about it?" Caro pleaded.

"I'll get there in half an hour, if that's fine. I still have some work left," Yuuno replied.

"Thank you very much, Yuuno-sensei!" Erio smiled.

HALF AN HOUR LATER

"Sorry to let all of you wait so long!" Yuuno said apologetically.

"Thanks for coming, Yuuno!" Fate heaved a sigh of relief.

Vivio was standing between Fate and Nanoha, her green and red eyes shining with excitement.

"Yuuno-sensei, tell me about the Saint King!" The little girl bounced up and down.

Everyone, you look tired. Even Shamal, you look completely drained out! I'll cast a healing spell to relieve your fatigue. Yuuno offered.

Everyone gathered around the librarian and they breathed blissfully as the green healing magic reached them. When their fatigue has disappeared, they made their way to the training grounds, thanking Yuuno.

"Vivio, let's go out too. Can you help me carry this book?" Yuuno handed a book to the little girl.

"Okay, Yuuno-sensei. Where are we going?" Vivio asked.

"We'll sit beside the training grounds and I'll tell you everything I know on the Saint King, all right?"

Vivio smiled and the two of them reached the training grounds, where the forwards have already started training. Carim, Verossa and Schach followed closely behind, and Yuuno casted a Floater Field to accommodate all of them.

Apparently, Vivio was surprised when she found out she could float in the Floater Field and she squealed with delight.

"So, as you know, the Saint King dates all the way back to the Ancient Belka times. The Saint King…." Yuuno began to tell Vivio all he knew about the long history of Ancient Belka.

Vivio began to feel sleepy, and her eyelids kept dropping down. Yuuno asked Vivio to close her eyes and sleep but the stubborn girl refused.

"… Come to think of it, Vivio, your Ancient Belka magic triangle is rainbow-coloured. It's rare; I think you possess the powers of all the Saint Kings," Yuuno stated.

"Really? That means Vivio is strong! I'll protect everyone!" Vivio stood up, and she did the unexpected.

The little girl changed to her Adult form, and she wore her Saint King amour.

"Vivio, what are you doing?" Yuuno stared at her in shock.

"I'll show you my powers as the Saint King! I'll protect everyone from danger!" Vivio began charging up a rainbow-coloured ball of bombardment spell.

"Struggle Bind!" Yuuno shouted, and green glowing binds restricted Vivio.

Her bombardment spell disappeared within the magical ground, cancelling all magic.

"Vivio! Why did you do that so suddenly? What if you shot that bombardment spell? You could've destroyed part of this place! Don't do that ever again, understand?" Yuuno raised his voice and his expression was stern.

"Yes… Yuuno-sensei…" Vivio trailed off, ashamed of her actions.

Yuuno released the Struggle Bind, and Vivio reverted back to her normal self. The little girl sat down on the Floater Field, flipping through the books Yuuno brought with him and sulking. The Chief Librarian, obviously annoyed, worked on writing some theories.

This is the first time I've seen Yuuno angry, Hayate, Fate, Nanoha. He got really worked up! Carim said to everyone.

He was right getting angry; Vivio could hurt someone just now. Fate said.

Yuuno, are you perhaps very angry now? Hayate asked cautiously.

Yes, but only at Vivio. She should have taken a small nap just now; she almost shot that bombardment spell and that could hit anyone of you. It could be fatal. Yuuno said flatly.

Luckily you stopped her in time, Yuuno. Verossa gave Yuuno a smile.

The librarian shot a small smile back, and looked at Vivio. The little girl had already fallen asleep. Yuuno casted Physical Heal on Vivio, checking if his Struggle Bind just now had hurt her.

AN HOUR LATER

"Yuuno, come train with us. You've finished your reports already, right?" Vita asked.

"Sister Schach, Verossa, Vice, come join us too," Nanoha encouraged.

Vivio, who had woken up, sat beside Carim and both of them watched the training.

The four people made their way to the forwards and Nanoha said, "Vice, can you train Teana for me? After all, you're better at accurate shooting."

"Okay. But Storm Raider, can you do it? That shooting training earlier on was quite intense," Vice asked his device.

"I am fine," replied Storm Raider.

With that, Vice and Teana went over to a corner and practised their shooting skills. Schach and Signum polished their sword skills with each other, while Fate, Verossa, Erio and Caro teamed up. Subaru went together with Vita. Nanoha and Yuuno were the ones left.

A moment of silence hung.

"Yuuno-kun, can I do a shooting evasion with you?" Nanoha requested, finally breaking the awkward silence.

"Yeah," Yuuno agreed, and changed into his barrier jacket.

"Axel Shooter," Raising Heart sounded, and a dozen pink bullets shot towards the librarian.

Yuuno flew up and dodged the bullets agilely.

"Divine Buster," A pink beam charged towards Yuuno, and he created a Round Shield, blocking the Divine Buster.

I hope this barrier theory of mine works! Yuuno thought.

"Reverse Shield!" The librarian shouted.

The Round Shield in his hand glowed and slowly, Divine Buster started to disappear. A green mass of energy replaced the Divine Buster, and Yuuno cried out, "Shoot!"

The green mass of energy directed back at Nanoha.

"Protection Powered," Raising Heart intoned. Nanoha shielded herself just in time. Everyone else looked up, surprised that Yuuno actually used shooting magic without Celestial Heart and using a barrier.

Yuuno was grinning widely, and Nanoha was taken aback.

"Yuuno-kun, what was that?" The brunette asked.

"That was a new barrier theory I've wanted to test out. I named it Reverse Shield, because the shield can either reflect the attack back or absorb the attack and change it to my own. That Divine Buster just now could have been reflected back to you, Nanoha, but I chose the other ability of the reverse Shield. I absorbed the Divine Buster and made it my own, and then I shot it towards you, Nanoha," Yuuno explained.

"Can you teach me that, Yuuno-sensei?" Subaru asked excitedly.

"Me too!" Teana voiced out.

"Of course, but the theory might be complicated for you to understand to use it…" Yuuno said.

"Everyone can learn it all together later, after dinner. Let's continue our training." Hayate told Subaru and Teana.

Everyone went back to training and Nanoha took out Celestial Heart.

"Try shooting Divine Buster, since you've fired one of it just now," Nanoha smiled.

"Standby, ready. Set up!" The green pearl device glowed with green light.

Yuuno, in his new barrier jacket, held his device in his right hand.

"Shooting Mode, Divine Buster." Celestial Heart said.

Yuuno shot the Divine Buster, and this time, finally, after trying for about ten times previously, got it. The Divine Buster smashed onto the ground, making a hole in it.

"Congratulations, my master. You did it." Celestial Heart told Yuuno.

The blonde man beamed; he was as happy as a lark. He finally shot a decent Divine Buster with accuracy and power. Nanoha worked on the screens and a beeline of gadget drones appeared.

"Shoot Starlight Breaker next!" Nanoha said.

"Starlight Breaker," Green energy began gathering at the tip of Celestial Heart.

"Shoot!" Yuuno attacked, aiming at the gadget drones.

The green Starlight Breaker punched straight through the drones and all of them fell to the ground.

"I did it, Nanoha!" Yuuno went over to the brunette, giving her an elated smile. Nanoha returned the smile, and she said, "Since you can already use Starlight Breaker, use the cartridge system and activate Axel Mode."

Yuuno nodded and Celestial Heart said, "Cartridge system, set up."

The device did not change much; only that there's a magazine of cartridges below the green pearl, like Nanoha's.

"Let's shoot Axel Shooter," Celestial Heart suggested.

"Axel Shooter!" Yuuno called out, and a dozen green bullets shot out from the tip of the device.

"Yuuno-kun, concentrate and control the bullets!" Nanoha instructed.

The librarian shut his eyes and concentrated hard; there are three times as many bullets to control compared to Divine Shooter. The bullets bent and surrounded an unmoving gadget drone.

Yuuno raised his left hand and said, "Shoot!"

The dozen bullets pierced through the gadget drone with ease. Celestial Heart spat out a spent cartridge and Yuuno breathed in deeply.

"That was hard, Axel Shooter." He looked at Nanoha and Raising Heart.

"Your first try was good; your shooting skills have improved a lot, Yuuno-kun. Be proud of that fact." Nanoha patted the man on the shoulders.

Thank you, Nanoha. The librarian told the brunette. Green eyes met blue eyes.

Both of them blushed slightly and Yuuno looked away. Suddenly, his head jerked back and his eyes focused on a scene. He saw a woman, smiling. It wasn't the type of smile that would appear when pleased or delighted. It was more of a smile that a heartless hunter or poachers about to do the final strike to a dying animal.

She stood in a far corner of the forest environment of the training grounds. In her hand held a whip and he shivered in fear. Then a breeze picked up, sending her black hair like seaweed in a wave.

Yuuno was in a trance. He felt a sharp pain tugging at the back of his head and dropped Celestial Heart. He clasped his hands around his head, and his green pupils widened, in an obvious shock and pain.

"Yuuno-kun? What's wrong?" Nanoha exclaimed.

Everyone went forward and Shamal examined the librarian with Klarer Wind, a green Ancient Belkan magic triangle appearing under her. Yuuno groaned, and knelt down to the ground. He clutched his head so tightly that the knuckles of his fingers turned white.

"Shamal, what's wrong with Yuuno?" Vita queried anxiously.

"He seems to be in shock; he's remembering something terrible that happened to him in the past," Shamal's voice was filled with concern and worry.

Yuuno started to scream and tears flowed down his cheek non-stop.

"Don't come near me, I don't know! I told you before, I don't know anything!" He shouted.

"Yuuno, stay with us! It's alright; all of your friends are here!" Fate yelled, on the verge of crying.

"Yuuno-kun, it's Nanoha. Look, everyone is beside you. There's no one here to harm you!" Nanoha called out, shaking his body.

Then, Yuuno stopped screaming, and his hands loosened the grip on his head. His hands fell to the ground, and his eyes rolled over. Yuuno went limp and plunged into darkness.

"YUUNO!" Everyone shrieked.

It's a bit exaggerating, but I hope you still enjoyed it.