Leo Suiyan

Leo Suiyan, a previous teacher at Military Base 2 and one of the 10th Family's Sixth Head Quinn Talen's Vampire Knights. Leo is the first adult to guide and teach Quinn the path of a warrior and the broadness of the world.

Appearance
Standing at the back of the hall was a bald-headed old man wearing leather armour and had a long katana blade by his side. He usually wears beast armor under his clothes.

Then there was Leo, he was wearing light armour that fitted tightly to the skin similar to Fay.

Although he didn't look like his ordinary self—usually he would be wearing his military uniform and have his katana by his side. But right now, he had a light set of Black and Red Beast gear on, and his chest had the design of a Japanese demon. an Oni with horns. The Black pieces turning red and steaming when active.

Leo started to tear off his military clothing and underneath he revealed a chest piece armour that had the face of a demon on it. That's when the students also noticed he was even wearing beast gear on his feet as well. It was the same equipment Leo had worn when he killed the Dalki.

Vampire Noble
Leo looked like a new man. The most surprising change of all was he actually looked a bit younger. It was the new cells in his body, as everything about him had changed.

Leo was dressed in a sort of green armour, it was made using the beasts from the planet he was on. All of the equipment he was using was at the advanced level. The crystals provided were from the beasts Arthur had killed before he had even arrived on the planet. Apart form Leo's sword that is.

Vampire Knight
Leo initially looked like an old man (Human), later he looked slightly younger (Vampire), and now he looked like a middle-aged man again (Vampire Knight).

A bald headed swordsman who wore very light clothing, but underneath his shirt, a demon-faced chest piece could be seen.

Personality
Leo himself doesn't align with the military; he is on the side of humanity.

The atmosphere around Leo was full of confidence and one with a look of experience.

He was a simple man, rather than thinking about the bigger picture of what his actions would lead to, he thought it was best to do what was right in the current situation. As things came to him later he would continue to deal with it. This was how he always was and continued to be.

Leo was past his prime, and he tried his best to fight it with daily training, but there was a limit to what he could do. Vampires had an advantage in this, their body structures were different, and Leo was liking it.

Due to his advanced human age, Leo would some young men "boy" and young women "girl".

Leo is impressed by Quinn's diligence to improve and his care for his people. After becoming a Vampire, Leo voluntarily follows Quinn as his vampire knight for the youngster's leader and human qualities, not his strength.

Even on off days like today, Leo would often rest in his dojo, or practise his swordsmanship. It was hard to say that Leo was a workaholic because he wasn't doing it for work reasons. But there were times whereothers around him could see that Leo was obsessed with the blade, but even that wasn't quite right either. Leo was just obsessed with getting revenge against the Dalki.

Leo also has a casanova speech style towards pretty and decent women such as Silver.

Introduction
Leo was Quinn's Beast Weapons teacher, he had taught him a great deal about martial arts and helped him whenever he could. Quinn considered him the best of the teachers and a mentor to him but it resulted in everyone thinking Leo was favouring him over others which was somewhat accurate as Leo was intrigued by the Purple Aura that Quinn and his companions (Fex and Peter) had, separating them from the humans usual Yellow Aura.

On the day he decided to leave the base because of how corrupt the system was, he was turned into a Vampire by Quinn, an event he does not regret even with the weakening of his ability as he considers what Quinn gave him a gift that allows him to protect his loved ones.

Later, Leo met Erin and he saved her from James, the agent sent by Pure to spy her. However, before Leo killed James (chapter 365), he saw James used Qi technique, which is unique to the Temple in which he studied with his Master and fellow disciples. It is implied from the information Erin gave him afterward that his Master maybe associated with Pure.

Then, Leo and Erin went to a red-portal planet (the very same orange-portal planet that Quinn and others had an expedition before) to train to become stronger (chapter 467, 473) within one year (when Quinn and others graduate).

When Leo and Erin arrived at the planet, Arthur sensed Leo.

Past
Leo was born blind, so his parents abandoned him at the Temple on a mountain, there, he was adopted by his Master, who recognized Leo's ability and let him trained with other disciples.

When the Dalki first invaded Earth, the young Leo was eager to fight with the Dalki, thinking their Qi abilities can help humanity, just like the superheroes he had watched on TV. His Master, however, disagreed. Leo then secretly went down the mountain and reported the Temple and the town on the mountain as people who avoided the drafting. The people there, including the Master and Leo's fellow disciples, were conscripted to the military to fight. They were all relocated to another planet, which was a orange-portal planet at that time.

With their Qi ability, Leo and others from the Temple achieved many great things in the war. They managed to rebuild a settlement, which is similar to their town on Earth. However, one faithful day, a Dalki ship attacked, except Leo and his Master, all the other disciples and people perished. From that time, Leo and his Master never look at each other anymore, because the Master blamed Leo for the death of all other disciples and people.

Since then, Leo has always felt sad and guilty about the death of the disciples and town people.

Leo readily refused to join the military and only wanted peace after the war. However, he did agree to fight once again if the Dalki were to invade. At the time, Leo was a bit of a lone wolf who had refused to join any factions, including the Big Four. The military saw this as a chance to grab him up, but it proved difficult. In the end, Leo agreed at a request: he would join as a teacher.

Lintarnia's Shelter
For the last couple of years, Leo had been funding the entire Shelter himself with his own money. The beast crystals he had obtained, the money from the previous war, and all the money he received from teaching went to this Shelter.

This place was dear to him because it was the Shelter that he and his master and all the other students used to stay at before the Dalki attack. When they came, they had destroyed everything, and no one survived.

The government had given up on it, as it would have been more expensive to rebuild then build a new one altogether. This was when Leo stepped in. He rebuilt everything and invited those related to the ones that had died over to the Shelter free of charge.

Later, the Shelter grew on its own, and it became like any of the others, with taxes and so on being paid. But they still needed protection, and as it wasn't one owned by the government or the big four, Leo decided to take up that role. The other reason was, in rebuilding the Shelter, was because of his master. The two of them were last seen at the dojo. Or at least the ruins of it. He was hoping that there was a chance he would one day come back. But still, it seemed like he hadn't returned.

First Stage of Qi

 * Leo can perceive the Qi aura and wireframe of beings and objects without sight through Qi. He can use his Qi to enhance his physical body and senses.
 * Yellow = Human
 * Red = Beasts
 * Purple = Vampire
 * Pink = Vampire Blood+Qi
 * Usually, Leo's ability would allow him to detect auras and abilities through wall's and such, but it didn't work through Glathrium the hardest mineral.
 * Reset to Level 1 from Level 9+ upon turning into a Vampire.
 * Leo, with his ability, was able to see from a bird's eye view at times. On top of this, whatever didn't have an aura he would able to see a thin outline, like a wireframe, but not the details. It was hard for people to call him blind when his ability allowed him to actually see more than others.
 * Leo's ability was always on. He needed it as he used it as a type of vision for himself. Since he was blind, he would constantly activate his ability to see the aura of living things around him. In turn, this also allowed him to see the flow of energy in the body of his opponent. When an opponent attacks, their energy flow would move before the body of the person did. This was the same when a person used their abilities as well. If Leo concentrated by just a half, he could change his vision to almost a birds-eye view. Being able to sense all those around him, it was thanks to this skill that he was able to survive countless near-death situations during the war.
 * He can also sense lies by the target's energy fluctuations. Over the years, it came to the point where Leo was just as good as any lie detector. Of course, there were those who had a solid will and had been trained to the point where it wouldn't affect them.

Second Stage of Qi
Leo is taught the Second Stage of Qi by Quinn after the Vampire Lord's first return to his castle. Due to his genius talent, Leo immediately grasps the fundamentals of the Second Stage and reaches the peak. He continues to experiment with the Second Stage to reach the theoretically described Third Stage of Qi. The Second Stage of Qi increases Leo's Soul Weapon's performance and makes up what it lacks (depth control, range).

Cursed Weapon
A long blade katana and scabbard, the katana blade hilt was jagged and rough and the back of the blade the same. It looked like it had been forged from an animal that was not of this planet.

Hand-to-Hand Combat Expert
  Pugna Style: He would always use the palm of his hands for defence, and whenever he was attacking, he would use his legs.


 * The martial art we teach our soldiers here. It is named the Pugna style. A mixture of Karate amongst other things with the hands, while using a form of taekwondo in our legs. It's important, the reach in our legs is longer and more powerful than our arms. but our arms are more versatile and flexible.

(Enhancement type) Aura Manipulation
It allowed Leo to alter other people's aura through his own. He could remove the aura from a strike, making it powerless and one feel they no longer had power. The enhanced aura could also redirect and change the direction of one's aura, changing the path of the attack. However, the stronger the enemy Leo used this skill on, the more of the enemy's aura he would have to manipulate and it would only tire him out quicker.

Vampire

 * [Active Skill: Blood Swipe, Qi Ver.] (Vampire)
 * Swinging out his blade a few more times, Huge long lines of Qi mixed in with the blood swipe could be seen. Due to him using his sword, Leo was able to widen the range of a regular blood swipe and also the speed.
 * Quinn Talen's [Passive Skill: Vampire Knights Buff]
 * [When a vampire knight is fighting alongside its leader, all stats and skills will be increased by 10%. [Knight's Command] ]
 * Knight's Command
 * [A vampire knight is able to form a squad of ten vampires under oneself. For those under the Knight's Command, all skills and stats will be increased by 10%]
 * [A vampire knight squad has been formed] [4/10] [Vampire Knight's Buff has been applied] [Error, three non-vampires discovered.] [Buff will only have a 50% effect on non-vampires]

Trivia

 * Leo initially suggested Quinn to play the VR Game to earn combat experience.
 * During his period as a teacher of Military Base 2, Leo repeated helps Quinn and his group with their plans to save others.
 * Leo is the first human to ever hurt the Vampire Knight of the Sanguinis Family, Silver, earning her respect. He later learns of Silver Sanguinis's caring side. He is also unable to be blinded by Silver's transcedental beauty and preceives her as a wireframe mesh.
 * Leo dislikes selfish scumbags like Del.