The liars sister (Oumasai/Saiouma)(Rantaro x Reader)

Chapter 13

(Y/N)'s POV
      "I'm going to have to reject your offer, Tsumugi." I said in a confident tone. I'm not going to betray Rantaro, Kokichi and the rest of the students. "Oh? Damn! I thought I had offered you enough to seal the deal! Looks like you're actually a bad vice leader and friend then~!" Tsumugi said.

"No I'm not. I'm choosing to save them but not by joining you. I will do everything in my power to save them. Just not by you. I don't need your help." I said. "Now if you'll excuse me. I'm leaving." "Not so fast! If you're going to reject me then I still have to erase your memories! Also take your drink with you when you leave. I worked hard on it." She said.

She walked over to me and put something that looked like a flashback light in front of my face. "You'll remember we're friends and stuff but you won't remember the mastermind bits, Kay?" She said. Without giving me time to respond, she turned it on.

Tsumugi's POV
Ugh. She rejected my offer. Annoying. I really thought she would've joined me if it meant saving her group and Rantaro's sisters. Just so she won't figure me out again, I'll earase her memories and make her a little more oblivious.

                                         ~~~~

(Y/N)'s POV
      "(Y/N)! (Y/N)! Were you listening?" I heard Tsumugi's voice. "Oh sorry. I must've zoned out. What were you saying?" I said. "I was asking if you wanted to help me make my cosplay?" She asked. "Sure. And by the way, love the drink. It tastes awesome." I said. I took a big drink from the cocktail.

Me and Tsumugi made cosplay and talked for the rest of the time. After that, it was dinner time and I ate with Tsumugi. I saw Rantaro giving us a weird look. I decided to talk to him about it afterwards.

      After dinner, I looked around the dining hall to see it was almost empty, only filled with Kiibo who was staring at a plate of food in front of him longingly. 'He probably wants to be able to eat.' I thought.

      I put my dishes in the sink and went to find Rantaro. He was probably in his room. I went to his dorm and knocked on the door. It opened. "Hey Rantaro. What was with the weird look when we were at the dining hall?" I asked. He pulled me in his room and locked the door.

"Why were you talking to Tsumugi?" He asked. "What do you mean? She's my friend." I said. He looked into my eyes and the said "*Sonia* Nevermind." "You know that you can tell me anything right?" I said. He just nodded.

Rantaro's POV
Tsumugi has done something to (Y/N), I know it. "(Y/N), I have to talk to Kokichi. Stay here, I'll be back." I told her. I have to tell him so he doesn't bring her in this. I want to protect her.

      I was walking around with he school when I ran into Kokichi. "Kokichi! There you are! I was looking for you." I said. "Why? Are you going to kill me?!" Kokichi exclaimed. I sighed. "No I'm not."

      "Why did you want me then?" He asked. "It's about (Y/N). Tsumugi has done something to her. I think Tsumugi's erased the memories of her bing the mastermind." I told him.

      His eyes widened slightly but in a second, they went back to normal. "The nerve of that bitch." He said while smiling. "I wanted to say not to bring her back into this." I said. "Oh good. We're on the same page. I was just going to tell you the same thing!" Kokichi smiled. "But that was just a lie! I wasn't going to tell you that. I assumed you were smart enough to do that on you're own."

(Y/N)'s POV
      After about 10 minutes of being gone, Rantaro finally came back. "Babe! Let's watch the rest of my hero academia. You said there were 4 seasons right? Well better to finish it faster." Rantaro said when he came in the room. "'B-Babe'?" I asked. I was flustered about being called that because that's the first time he ever did, but I tried to hide it so he wouldn't tease me.

      "Yea. You are my girlfriend, after all." He smirked. "So do you want to watch my hero? If not, that's totally fine." He said. I smiled. "Sure! I'll go prepare the snacks. Go to the theater room and get it ready." I said. "Alright, sounds good." He said. He went to the theater and I went to the kitchen.

      While I was making popcorn and getting some soda, I heard someone. "What are the snacks for?" It was Tsumugi. "Hey, Tsumugi! I'm making some snacks for Rantaro and me. We're going to watch my hero." I told her. "That sounds like fun! What season are you two on?" She said. "We're at the end of season two." I said.

      The microwave beeped and I took out the popcorn and put it into a bowl. "Looks like I have to go now. See you later Tsumugi!" I said as I grabbed the popcorn and drink, then left.

     While we were in the middle of season 3 episode 17, I felt a weight on my shoulder. When I turned my head, I saw Rantaro was sleeping quietly. I put my head on top of his and also ended up falling asleep.

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I was going to make I join and reject side but I changed my mind because I lost the idea I had for the 'join' part