Dear Diary,

Welp. So I guess this will be a thing now. Probably should introduce myself, although no one's gonna read this anyway.

I'm Sans, Sans the skeleton. I live here in UnderFell with my bro, Papyrus, or "Boss". We're both part of the sentry team in Snowdin, where we live, but Boss is a higher-up, meaning he's also part of the Royal Guard. It's this elite force that everyone's trying to get into, which means that royal guards hafta always be on alert, 'cause people try to dust them to get their positions.

Tibia honest, I don't really care about being in the Guard. It's a relief actually; I don't hafta report to no one besides Boss, and people aren't targeting me as much.

That being said, that doesn't mean I'm not targeted at all. I mean, this is UnderFell. Everyone's gotta stay on their toes if they wanna stay alive. It's every monster for themself out here.

At least I have Boss. Some poor smuck out there is probably alone and about to be dusted soon, with no one to back them up. But I have Boss protecting me against other monsters, what with my measly 10 HP. I'm probably one of the weakest monsters alive out there, HP-wise.

Life with Boss ain't easy though. He can be extremely violent at sporadic amounts of time. I live in constant fear of whether he'll decide to take it out on me or not that day. It's not like I can run away. I have nowhere to go.

But enough of the pity story. Although life with Boss sucks, it's still life. I'm still alive. Not a lot of monsters can say that.

Alright, now that all that's cleared up, now to the reason why I started this diary. Nobody knows I have this, not even Boss, and I'm gonna keep it that way. Something strange happened today, and I want to make sure I document everything that happens from now on.

So today, me and Boss were patrolling our usual route, finally making a circuit through Snowdin forest, when we spotted someone in the distance. It didn't look like no one we've seen before. For one, he was wearing bright colours, purple and blue. And another, he was a skeleton monster.

I had thought me and Boss were the only skeleton monsters left in the Underground, so it was quite a surprise to see this newcomer.

Boss immediately ordered me to take out the new guy, so I stepped right to it, not wanting to anger him with my slowness.

It was quite easy really. I think the other guy was just as surprised to see another skeleton as we were. His fighting style was almost the exact same as mine, 'cept he used purple magic, but it seemed that he didn't practice as much as I did. I took him down pretty easily, pinning him to the ground with bones.

When we got closer though, I realised just how different this new skeleton really was. His clothing choice not only clashed with everyone else in the Underground, he also didn't have any scars whatsoever. Literally no one didn't not have scars.

But what startled me the most was how similar we both looked. Besides the clothing, lack of scars, and purple heart-shaped eyelights, he could've passed for me, had I been slimmer and a little shorter.

I almost didn't catch Boss's command to take him home, which I scurried to follow. Picking up the long-unconscious body, we paced back to our home, where Boss instructed I lay the new skeleton down on our couch.

I hadn't realised until then that it had been strange of Boss to not order me to kill him straight away. Wasn't that what we were supposed to do? I just shrugged, going with whatever he wanted. It wasn't like I could object. He would hurt me for sure if I did. And so, we left the skeleton on the couch, turning in for the night.