Mio Pov...
I dragged my exhausted and wounded body for sometimes until I found a cave near the cliff.
I first checked the cave if there is any wild monsters living in it. After confirming that no one is living in the cave, I entered the cave and blocked the cave entrance with rocks which I found around the cave.
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Touching my back against the stone wall, I finally got some time to breathe.
"I should treat my wounds first." Mio only had simple first aid kit which she bought for an cheap price. Mio began to clean the wound then bandage the wound. This helps keep out germs.
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Finn Pov...
It didn't take long for Finn to reach the area where the explosion took place. After arriving at the area, Finn saw everything in 100 meters was destroyed and a deep crater had formed. Finn also noticed blood stain, small pieces of flesh, bones.
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"I wonder who is responsible for such damage. Looking at the pieces of flesh and blood, the people fighting the person who released this S tier spell should be still alive."
TENSEIGAN!
Finn activated his Tenseigan and began to look around, hoping to find the one responsible for the explosion.
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" There she is." Finn smiled and disappeared once again. Several minutes after Finn left, few other figures wearing black cloaks, they had the same one horn on their head. The other group of Demon Assassin had come to investigate.
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Mio Pov....
After bandaging my wounds, I felt very exhausted and hungry. It's to be expected as last night I didn't eat anything. Mio took out some dry food frok her space ring. Looking at the space ring, a look of longing and sadness could be seen on Mio's face.
"This is the last thing I have from my parents. Rest everything was left behind or sold by me. But one day I will get everything back. I will have my revenge."
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As I ate, relaxing my body, my body calmed down and a wave of exhaustion hit me. This is to be expected, I have been walking for the entire night and now I am wounded. Mio felt her eyes getting heavy but at that moment
"So she is here."
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I opened my eyes after hearing the male voice. I stood up in difficulty and took out my daggers. My body was trembling due to exhaustion.
"You don't have to worry, I don't mean to harm you." Mio heard the Boy's deep voice. How did he know that I was planning of attacking him? Mio couldn't find any answer.
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Finn removed the stones blocking the entrance of the cave. Soon I saw the face of the handsome boy. NO No, what I am thinking, get hold of yourself. No one would came to save you. In this world, there is no free lunch. I am sure he must have come because of the explosion. Lucifer must have sent him here.
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Many thoughts was running in Mio's mind, she did not notice when Finn finished moving the stones and approached her.
"Excuse me!" Hearing Finn's words, Mio finally returned to reality and was startled when she saw Finn in front of her. Mio immediately stepped back and raised her daggers.
"If you touch me, then I will kill you a hundred times."
"__"
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Cough!
"It seems you misunderstood. I came here to investigate the cause of the explosion on behalf of Lucifer. I mean no harm to you." Hearing Finn's words Mio relaxed a little. Since this boy was not sent by Demon king then Mio was safe from the Demon king. Sirzechs Lucifer used to best friend of my father but I am not sure if he would go against the current Demon King to help me. So it's better for me to not expect anything from anyone.
'I don't trust him. I don't want to fight him either. I might able to get out of here without having to fight him.'
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"I was the one who caused the explosion so what do you want?" Mio's voice was still cold. Finn carefully looked her. Mio had messy and dirty red hair, bandage was covering her forehead, arms and legs. She wore some old and dirty clothes. 'I would have thought she was salve or some poor girl if she wasn't near the explosion site.'
[I feel pity for her. Master you should save her.] Finn silently nodded. He too felt pity for the girl.
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"Looking at your appearance and judging from your power, you're running from something aren't you." Hearing Finn's words, Mio flinched but she quickly calmed herself.
"Yes, but I rather not talk about this subject. If you don't have anything, can I leave now? I have a family waiting for me." Mio didn't wait for Finn's words and she began to walk out of the cave.
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When she was about to exit from the cave, Finn grabbed her hand and teleported with her to Gremory Household.
Mio panicked when found herself in a different place. "Release me or I will kill you hundred times." Mio wanted to escape from this place as fast as she could.
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Sirzechs Lucifer and Grayfia was still discussing something related to Hero faction when they saw Finn coming back with a red haired girl. Seeing the red hair, Sirzechs felt that he had seen this girl somewhere before. More importantly this hair remained him of his little sister. Grayfia approached Finn and asked. "Finn, she is..."
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"She is the one who caused the explosion. Let's talk about that later. Grayfia please heal her wounds." Finn looked at Mio who now was looking at Sirzechs. Finn felt that Mio knew Sirzechs.
"Come with me." Grayfia began to walk. Seeing Mio not following her, Finn whispered something into her ear. "If you don't want me to eat you then go with her."
Mio glared at Finn one last time "I will kill you hundred times."
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After Mio and Grayfia left, Finn noticed that Sirzechs had a look of complication.
"What happened? You know this girl or what?" Finn asked.
Sirzechs sighed and massaged his temples. "Her name is Mio Naruse and she is the daughter of previous Demon King."
"So she is the one whom you asked me about?"
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"I have been searching for Mio for an year. Looking at her appearance, the current Demon king must have send his men to capture her but fortunately she managed to escape." Sirzechs told Finn how Mio's parents were killed by the current demon king and the Demon race history.
[What a cliche!] Mia said
'I agree but this is the real thing so never how cliche it is, I feel pity for her.'
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"Lord Lucifer, Princess has returned home with her friends." One of the main reported while serving tea to Finn and Sirzechs.
"Finn, do you think you could start my sister's training today?' Finn nodded.
"Let's meet your sister." Both Sirzechs and Finn went to meet Rias.