"I'm sorry but your name has seemed to slip my mind. What is your name again?" Korosensei asked.

"Oki... Ruka..." Oki said. Korosensei froze as he stared at Oki.

"This can't be..." He said, showing disbelief.

Chapter Thirty-One: Who are you really?

"You can't be Oki Ruka. Oki Ruka died two years ago." Korosensei stated as he looked at Oki in disbelief. Everyone stared at the octopus like alien in confusion as he spoke, all raising eyebrows.

"What are you on about? She's Oki Ruka. This other Oki must be a coincidence." Ichirin said as she stepped forward before looking at Oki, who had a shadow over her eyes. "Right Oki?" Ichirin said. Oki looked up and smiled with her tongue sticking out of the corner of her mouth as she knocked on her head with her eyes closed.

"I've been pretending to be Oki for so long, I thought my name was Oki for a second there." She spoke in a playful tone, making everyone stare at her with wide eyes.

"Heh?!" Everyone exclaimed at her in shock.

"What is your real name then?!" Hinata asked in shock as she stepped back. Oki's expression changed to a more serious one as she spoke, however, she still wore a gentle smile on her lips.

"It's Emi. Emi Ruka. Oki was my big sister." Oki, well, Emi spoke as she looked at everyone, who was still looking at her in shock, all unsure of what to say.

"I thought you seemed familiar..." Korosensei spoke as he stepped forward, looking down at Emi.

"Do you know this Oki Ruka Korosensei?" Nagisa asked as he looked up at his teacher.

"Oki Ruka, Emi's older sister, was once my lover..." Korosensei said, releasing a sigh as he turned his head to look at everyone. Everyone wore a shocked expression. Irina and Erina wore a more disgusted expression more than anything.

"S-s-so you did have a love life?!" Rio exclaimed as she pointed at Korosensei, her arm shaking as she stared at her sensei with wide eyes.

"How can something like him even get a lady to look at him?" Akito asked, still holding his side in agony.

"Rude!" Korosensei cried, feeling offended on what his students are saying about him. All of a sudden, the woman appeared behind Korosensei with a knife in her hands and anger showed on her face.

"Korosensei! Look out!" Kaede shouted in panic. Korosensei was about to turn his head as the woman spoke in a cold tone.

"You're done!"

Just before she could attack him, a large man appeared in between the two and hit the woman back with the palm of his hands. Everyone's eyes went wide at the mysterious man who stood in front of Korosensei. The man had short black hair and blood red eyes. He wore. along black coat with a grey scarf, black trousers and shoes to match.

"Who is that?" Hiroto asked as he watched the man walk towards the woman, who cowered away, fearing the tall man with glowing red eyes that showed a large lust for blood. He held a dagger in his hand as he approached the woman.

"Dad..." Akita spoke weakly as she looked up at the man, who stopped when he heard Akita's voice. His ears twitched as he turned his head to the young female.

"Dad?!" E-Class exclaimed in shock. Akita's father left the woman and quickly walked over to Akita. Once he was in front of her, the male pulled Akita into a tight, protective hug.

"Aki! I was so worried! Are you ok?! I don't want to lose my baby girl!" Akita's father said with a brother aura around him while a dark aura was surrounding Akita. Everyone wore blank expressions with sweat running down their faces... Well... Not everyone... Karma was sniggering to himself behind everyone.

"That's the deadly assassin Bloodlust?" Nagisa asked with sweat falling down his face.

"He doesn't seem very deadly to me." Hiroto stated with a blank expression on his face and a hand on his hip.

"He might not look it, but he is. He's killed so many people in his time." Irina said as she stepped forward. She and the other teachers stood in front of the students and Korosensei as they watched the male. "Dad. Let go." Akita ordered with a frown on her face. Her father finally released the female and stood up straight.

"Are you ok?" Her dad asked as he stood up and looked down at Akita. Akita looked away and nodded her head gently. "I could have handled it. I didn't need your help." She said with a huff. An arrow went through his chest.

"So harsh..." Rei said with her arms folded as she watched Akita and her father.

"Tsundere's are so hot!" Taiga said. Everyone had more sweat drop down their faces at their classmate's statement. Akita's father placed his hand on Akita's shoulder and nodded his head.

"You did good." He spoke softly.

"It's not... Over yet..." The woman said as she ran over to the man. She then used her tentacles to pick up her accomplish and then she ran off, carrying him.

"They're gone. Thank goodness." Suiko said with a sigh of relief.

"So. Why did you take on your sister's name?" Korosensei asked. Emi looked down, but then they heard coughing. Everyone looked at Aina who was on her knees, hand to chest and mouth, as she continued to cough.

"Aina! Is it your heart?" Akashi asked with wide eyes. Aina continued to cough until she began to cough out blood.

"This isn't good. It must be the stress of being kidnapped as well as the air!" Katsu said.

"Does she have a heart problem?" Yuma asked.

"Yes she does. The doctors said she might live a long life. Might." Akashi explained.

"We need to get her to a hospital and fast!" Erina said.

"I'll take her and you all meet us there." Korosensei said. He picked Aina up and then sped off to take her to the hospital.

"Let's go! I'll drive!" Erina said as she showed the keys to the bus.

"N-no! No! No!" Everyone shouted.

"I'll drive so you don't kill us." Karasuma said as he took the keys.

"Huh?" Erina questioned.

"Life savour." Everyone said.

. . .

The two classes made it to the hospital in one piece with Karasuma driving. They all ran through the hospital and Erina went to a desk.

"Aina Enju! Where is she?" Erina asked.

"The blue haired girl?" The nurse at the office asked.

"That's her." Tristan said.

"A large man took her to a room down there." A male nurse said, pointing west.

"Thanks." Irina said as they all ran down the halls. They then stopped when they saw Korosensei in a room full of doctors helping Aina. Korosensei saw them and walked to them.

"Is she ok?" Akashi asked.

"She might be fine." Korosensei said.

"Might?! What's wrong with her?!"  Katsu exclaimed.

"The doctors are taking a look at her as we speak. They are trying to find the problem." Korosensei said. Katsu grabbed Korosensei by his collar.

"This is your fault! If everyone didn't want you, none of this would have happened!" He shouted. Erina then hit him in the corner of his neck with a quick chop of her hand. Katsu's eyes went wide before he closed them and fell to the floor unconscious.

"Erina-Sensei! What did you do?!" Akashi exclaimed.

"We can't have you making a scene. Everyone is looking at us because of the shouting and they'll be staring at the alien because of how he doesn't look like a human being." Erina explained. "Take Katsu to a chair and sit with him until he wakes up." Erina ordered.

"Tsk." Akashi said as he picked Katsu up and o-ok him to a waiting area to sit in.

"Will everything be ok Korosensei?" Yukiko asked.

"We can only hope." Korosensei said.

"Where's my daughter?! I need to see her right away!" A panicked female voice cried. Everyone looked down the hall and to the front desk to see a woman with dark blue hair and dark blue eyes. She had tears running down her face. She wore jeans that looked old, a shirt that had stains and a coat with holes as well as boots that were full of dirt. Izayoi walked to her.

"Is that Aina's mother?" Megu asked.

"Mhm." Ichirin said.

"Mrs Enju." Izaoyi said.

"M-Miss Imari!" Mrs Enju gasped.

"Follow me. I know where your daughter is." Izayoi said.

"Thank you." Mrs Enju said. They walked to the class and then Mrs Enju looked through the window to see her daughter. "Oh Aina... How did this happen?" Mrs Enju asked herself with a sad expression.

"Are you Aina's mother?" Irina asked.

"Yes. I'm Ariana Enju. Are you the new teachers and classmates Aina mentioned?" Ariana asked. Everyone nodded. "I see." Ariana then turned her attention back to her daughter but went wide eyed when she saw the doctors wealing Aina's bed out. As they got to the door, she ran to them. "What's going on?! Is she ok?!"

"We have to perform an emergency surgery, or she won't live as long as expected." The doctor said as they took Aina down the hall. Ariana fell to her knees with wide eyes.

"Mrs Enju, are you alright?" Erina asked as she went to her knees and looked at Ariana in the eyes.

"My daughter..." Ariana then brought her hands to her face as she sobbed.

Tbc...