New Student (Reader x HAREM) (Jin x Reader!Sister!)

Chapter 6

Normal P.O.V.

Waking up, you felt arms wrapped around your waist. You felt warm. You looked up to see Sebastian, sleeping. (Most of you are probably questioning, or laughing that I added Sebby in this story. This is a various anime so, I can add characters from other animes whenever I want) Lightly shaking him, his eyes fluttered open, he looked down at your form and slightly widened his eyes. "Mistress" he muttered. He sat up and helped you sit upwards. He stood up, and held a hand for you. You gently placed your and in his as he helped you up. He helped you put on your heels like Cinderella. You smiled slightly at him making him proud of his job.

He opened the door for you as you looked at the clock."It's already War Time" you stated. He was behind you, looking around. "Mistress, do you participate in War Time?" Sebby questioned, you nodded slightly. "Yes, but I'm just a sub mechanic, I only battle when I have to" you stated. You proceeded to walk to the monitor room. Once there, Sebastian found a seat for you. He sat beside you, looking at the screen as you told him to.

"They need help" you mumbled, Sebby smiled a bit and stood up. "You can fight, mistress, I'll be waiting" you let out a small smile and nodded, taking his hand and run to the pods. He went to the briefing room where Ms. Mito would be. "Ms. Mito" he started. The female turned around. "Mistress Kaido will be joining the fight" Ms. Mito sighed in relief and nodded. The butler stood a few meters beside her and looked at the battle from below.

You got in the pod and did the procedures. You blinked and soared your LBX off. After a few minutes, you could already see the battle from below. (Imagine that they haven't met Takeru)

You saw Arata fighting the Violet Devil. You sighed. "Everyone, sorry I'm late! " Yuno and the others began to smile. "I'll take out as much of the LBX'S near the checkpoint! Go help Arata!" you shouted, a chorus of yes' was heard as you landed. Multiple LBX's began to surround you. "Take out Kaido! As soon as possible!" Mikhail shouted.

You sighed. Taking out the blade from the back of your LBX, you began to close your eyes. You opened them as it turned crystal blue. You swung your sword around once as the LBX's that surrounded you in a 7 meter radius was slashed. You flew up as they all blew up. You saw Arata using his Overload and defeated the Violet Devil.

You stood in the checkpoint, making you smile. You took off your goggles and swept the bangs on your left face. You opened the control pod and rushed to Arata's. You saw him smile but he clutched his head. "Arata" you mumbled. You placed his arm around your neck as he gave you a thankful smile. "Kaido-san, Arata!!" Sakuya shouted, running up to the both of you. You blinked as you deactivated Overload. You felt Arata pant as he passed out. "Arata!" you shouted. Haruki called the nurses as Arata was taken to the emergency room.

"Will Arata be alright?" Sakuya questioned, looking down worriedly. You petted his hair and slightly smiled. "Don't worry, he just collapsed due to exhaustion" Sakuya smiled in relief as Haruki walked beside you. "Thank you for showing up, Kaido-san" you nodded and slightly smiled making the boys heart flutter. "Sorry for not showing up earlier, I fell asleep" you looked down. Yuno petted your hair as you looked up at her. "Don't worry, at least you helped us" you nodded. "Let's go to the infirmary" they nodded as all of you walked away.

Time Skip

You sat on a chair beside the bed Arata layed on. You had a bag of chocolates on your lap. You took one and began to eat. Arata began to stir and slowly open his eyes. "Eh? Kaido-san? Hikaru?" Arata muttered. "You're finally awake, here, eat up, you need some sugar" Arata opened the chocolate bar and began to eat. "Thank you, Kaido-san" you looked at him as he smiled. "I felt different than before when I used Overload" you slightly smiled at that. "That means that your progress in training is rising, but, please refrain of using Overload" you stated. "Why?" he questioned, eyes furrowed in confusion. "Your body still can't handle it, you have to train more" you stated with a hint of worry. Arata widened his eyes and slightly blushed. "Okay" he muttered. The door opened to see Sebastian come in. "Mistress" he muttered thankfully. You were too busy looking at Arata that you didn't notice Sebastian behind you.

"Mistress, it's almost 6 pm" you turned your head to see Sebby. "Ah, you're going to leave the island at 7, right?" you questioned, a hint of sadness in it. Sebastian then gave you a f/c rose. He placed it on your ear as he smiled. "I have to take care of the Kaido fortress, it is my job to do so, we'll see each other again, mistress" Sebastian bowed, you smiled at him making him widen his eyes. It was rare enough for you to slightly smile or let out a small smile but seeing you smile genuinely was a beautiful sight that everyone could melt.

"Okay, Sebby" he gulped and left the room. He blushed wildly, remembering your smile. "Guess my daughter figure is growing up" the man chuckled. You held Arata's hand and began to chant words. "Chiyu: Iyashino Iyashi" his headache broke and he blinked in surprise. "How did you do that?" Arata questioned, surprised. You hid the talisman and smiled slightly. "Secret" you stated. Arata puffed his cheeks out, Hikaru and the others smiled. You fixed your hair and looked at your hands. "Let's go to the dorms, Ms. Tome is probably waiting" you stated. They began to sweat nervously making you chuckle. They blinked and looked at you. "What?" they blushed as Yuno hugged you tightly. "Your laugh is so adorable!!" you blushed slightly and looked down, embarrassed.