He wants to make up for all the experiences of a seraph that he has yet to experience, unlike other seraphim who had centuries of experience. Rarely will he be seen emotional other than his normal calm and reserved personality. Even though he observes, he still wants to fight and does not want to be a liability to the rest of the group. But even so, he is still kind to strangers but can become suspicious of them if he senses some negative aura surrounding them. When he has grown close to people he becomes concerned with them and can be quite protective of them like he is to Sorey. He is the observer of the group, analysing his surroundings to help the group in case there is a clue or if the area seems suspicious. He expresses his thoughts in a straight-forward way and does not beat around the bush. He thinks of Sorey as his rival and best friend and the others find that Mikleo gets more enthusiastic if Sorey is involved. He thinks more before he acts, unlike Sorey who is impulsive. Mikleo is rational and reserved, mostly proving his point with solid evidence. He is seen with his hair tied up in a ponytail. His hair is much longer and reaches below his waist.

He wears a black shirt under his clothing, which shows because he does not button his shirt fully like before. The future version of Mikleo, when he is older, wears a modified version of his previous attire. Beneath his front bangs, he wears a gold circlet with an emerald planted in the middle.

He also wears a blue cape with white embroideries. He also wears white pants with a light blue at the end and black shoes.

He wears a long-sleeved cyan top with gold and white decorations, which is loosened from his waist to the tips of his knees. Mikleo has medium length silver-white hair, his front bangs directed to the left.

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