Reincarnated as Sans twin brother

Demon's genocide and consequences

Frisk POV

Both brothers gave me a small tour of New Empire before saying their grand tour was over. They said they would let me explore the monster market by myself and told me I had to meet the Emperor tomorrow. They said his name was Asgore, but some people joked around and gave him the nickname 'Emperor Fluffy Buns.' They had already shown me where a hotel was that I could rest for the day and waved goodbye to me. I was bored and decided to look around. As I walked the streets, I noticed a monster selling kitchen knives. I bought a knife from the monster, saying that I was going to try cooking and that I would be very careful with it. The monster was really trusting, and she gave me the knife, wrapping it up in a box for my own safety. With the box in my hands and the save star I found right in front of the palace itself, I went back to the hotel, thinking that tomorrow was going to be so fun.

Time skip because you guys already know what happened.

It felt so good letting out all my frustration I had against the monsters in the time I had spent traveling to get to New Empire. At that time, I didn't hide my emotions anymore and showed how happy I felt killing the monsters. Sure, I died many times, but in the end, it was them who could stay dead if I so wished. I felt especially good when I dusted that damn fish lady, Undyne, and saw Alphys's crying face as she was pulled into the palace as the doors were closed. It did take me some time to figure out how to get by those giant palace doors until an idea came to my head and I slashed an X shape at the bottom of the door itself. It was big enough for me just to push the wood out of the way at the bottom of the X. Then I just walked in, giggling to myself about how great I was feeling and how powerful I became. I was on my own little mission to finish off Asgore and kill the rest of the monsters. I found another star in the palace itself and touched it to save. And I continued on my merry way, but I completely forgot about the skeleton brothers.

There, in a long winding hall, I saw them with their eyes closed, looking up at the ceiling. When I saw them, I couldn't help but smile evilly as I sneakily went to kill them. Sure, some might say I'm ungrateful for killing them after they helped me so much in my journey, but who cares? It's not like they're going to remember any of this. And I wanted so badly to make them suffer for all those damn puns they made. And again, I know, that Kurōbā never made puns and he was always kind to me, even cooking for me. But I was upset with him too because he treated me like a naive child who didn't know any better.

As soon as I went to pounce to kill them, a blast of magenta shot at me, and I died instantly. I immediately used the reset button and appeared at the last save star in the palace. That time I dodged the shot, and all three brothers looked at me with their masks blank.

"Do you believe you don't have to face the consequences for your actions? That all your sins would just go away if no one remembers them? Sorry to be the bearer of bad news, but that's not how life works. NYAH HAH HAH!" Kurōbā said.

"Life s'not a video game. Ya can't jus' push reset n make everythin’ better. Ya should learn from yer mistakes n pay fer yer sins," Hōseki added, and his right eye started to glow cyan, and Papyrus followed after, but both of his eyes glowed an amber color. Supēdo hadn't said anything yet; he didn't look over at me but was looking over to one of the windows in the hall that showed that it was already midnight. For a moment, I almost thought the three of them remembered all the resets I did against the royal army, but wisely thought otherwise, and thought I needed to keep my mind sharp. That's when Supēdo began to speak.

"Tonight, the moon rises n shines its beautiful light on the land below. The cherry blossoms blow softly inna wind tonight, n beautiful cranes sleep peacefully in their nests because the day is over n done with. On nights like these, kids like ya should be sufferin’ in hell." His left eye glowed navy, and all three of their masks showed fangs, with very visible snarls; additionally, their eyes were sharper and looked really pissed off.