So that's the opening song for the concert. Listen to it if you want, idk. 

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I sat on the couch with Sans eating some pancakes we picked up at Grillby's. Sans was telling me about some of his jobs. I was only partly paying attention because I was thinking about what Flowey had told me.

"Hello? Earth to (Y/n).." Sans said snapping me out of my internal bubble.

"Huh? Oh, babe I'm sorry I was just a bit lost in thought." I replied meekly.

"Don't let me bore you to reset." Sans said trying to be funny.

I gave a fake laugh which Sans obviously noticed.

"Is something wrong? You can talk to me about anything you know." He said giving me a sympathetic look.

"Everything is okay. I'm going to wash up and get ready. We have that concert in a while to go to." I said getting up from the couch and walking up stairs.

I grabbed a towel and went to the bathroom. I undressed and got into the shower turned on the warm water and let it drench my hair and body. As the water dripped down my skin and I scrubbed myself clean with the bar of soap I considered my choices and plans.

Going to the surface while Chara is still able to posses me was out of question. The outside world is a large place and really there's no way I could have Sans watch over me every time without any mishaps. If I go out of the underground Chara will be able to kill humans too. I can't let her do that.

Can I really just stay here forever though? No, the thought of that depresses me too much. Chara wouldn't be able to go outside without me as a host. Am I really the only one who can break the barrier and free them.

Then the realization hit me.

I am not the only one who can break the barrier. Seven human souls can also break the barrier. If I actually die my soul will be up for the grabs. The monsters will give it to their king and he can open the barrier. Asgore can open the barrier with my soul. If I actually die he just might be able to have it.

I heard a knock on the bathroom door and once again my thought bubble was popped.

"Hey you're sure taking a while in there. Everything okay?" Sans yelled through the door.

"Yes, almost done!" I replied hurrying to finish washing my hair and rinsing off all the soap on me.

I turned off the drain and dried myself. I was going to dry my hair but I realized that skeletons probably don't have hair dryers. So I just combed it and let it air dry. I looked at the time and was surprised to see that I took about 2 hours in the shower. No wonder my fingers were all pruny.

I ran out of the guest bathroom in a towel and went to grab my clothes and yelped when I saw Sans shirtless in his room. He was changing into his clothes for tonight. He had a wide rib cage but thin arms. He looked so thin and frail. It kinda made sense why he only had 1 health. He was just bones after all, still I couldn't help but stare. When he saw me his face flushed blue. He scanned my body covered by the towel, causing me to blush and clutch the towel tightly as possible to keep it from falling off.

"Uuuuuuuum... I am just going to grab that and go." I said awkwardly grabbing Mettatons present and running back to the bathroom.

I locked the bathroom door and sunk in the ground hiding my face between my legs. That was so embarrassing. I shook my head and decided to just erase the memory from my mind for now. I had more important things to worry about right now.

I got dressed for tonight in the outfit Mettaton had gifted me. It fit me perfectly and I looked pretty good wearing it. I was wearing a black pair of jeans with a white graphic tee of a rib cage. Irony right..

After I had finished getting ready I came out of the bathroom and went down stairs. Waiting for me was Sans dressed in a pair of light blue jeans, a plain black t-shirt and a blue flannel. I noticed he was still wearing his slippers though. It was nice and casual perfect for a concert. When he saw what I was wearing he laughed. No surprise though the outfit Mettaton had given me was probably a joke or message to me and Sans saying "I know" or 'I ship it'.

"You look great." Sans said walking up to me and lacing his bony fingers in my hand.

Sans led me out the door and as soon as we walked through we were in the Hotland playhouse theater. This must be the closest thing they had to a concert hall here.

Near the entrance was Alphys, Undyne and Papyrus waiting for us.

"You punks look nice!" Undyne said giving me a rough pat on the back. Ouch.

We walked into the theater and went to our booth. We were sitting in one of the VIP booths. I looked around and saw all the people filling up the seats, most people would probably stand and dance once the music started though. Undyne who had gone to grab some drinks had returned.

She was carrying a cooler full of alcoholic drinks. I didn't even know monsters had alcohol down here.

I could see below that all the seats were filled already. The lights all dimmed and a spotlight was turned on the stage. A electronic pop beat started playing and a silhouette of the flamboyant robot appeared.

"They need a monster that they can root for and I will give them everything!" Mettaton started singing his opening number. He was dancing and singing like a real Idol.

The audience started cheering loudly. The rhythm of the song was upbeat and the chorus was quite catchy. Definitely a song that could get stuck in my head. Alphys and Undyne were dancing and Papyrus was jumping and cheering. Even Sans was bobbing his head to the beat. Everyone was distracted in the show. I got up to go and Sans grabbed my arm before I could escape. He gave me a questioning look and I mouthed out the word 'bathroom'. Sans nodded and let me go.

I left the booth and I was at a empty hallway. Searching for a spot where I would not be disturbed I found a janitor's closet and went inside.

"Come out Flowey." I said calling out my creepy plant stalker.

Flowey appeared from the ground somehow I was on the second floor but that didn't seem like a problem for him.

"You know if we keep meeting like this someone might get the wrong idea." The flower said with a devious smirk on his face.

What the hell, did he just flirt with me? I rolled my eyes and made a disgusted face.

"Can we please get to the point? You know why I called." I said annoyed.

"You made your choice I'm guessing." He said

"Yes I did and I assume you have a plan for it. Right?" I asked

"Of course I do. Your decision doesn't surprise me. My first time experiencing this I believe the one who explained it to me called it 'sacrifice.' Is that a thing up on the surface?" Flowey asked me.

"Only in some places." I mumbled.

"Whatever, shall we move on now." He said totally disconcernd that he was talking about my suicide.

"Your helping me. This isn't like you. What's in it for you?" I asked questioning his plans.

The flower looked at the ground with a somber expression before lifting his face and contorting it to a nefarious grin.

"It'll be interesting..." He said wickedly.

"Right now you're the only one I can trust. Please when this over and everyone is out and free. Don't take it away from them." I said sorrowful.

"I may be bad but not that bad." He said his face returning to normal.

Flowey told me what to do. He gave me a thorn and told me to use it once I'm ready. I asked how I would know but he just told me that there will be a signal and it'll be obvious. Without even telling me what the signal was he left, leaving me alone to follow the plan.

I went were I was told and followed the sign that said 'Human this way,' pointing behind a black curtain. Behind the curtain everything was dark. I heard Mettaton announce a special performance and the audience cheered. I realized I was on a platform and it started move up.

My palms were sweaty. I put the thorn in my back pocket for now and mentally prepared myself for everything that was about to happen.

"Chara, this will end here." I said to myself before the spotlight turned towards me and I heard Mettaton introduce me to everyone as the 'The last soul.'