Sans AU X M!Reader

prologue

(m / n) at the age of 10.

(m / n) POV

Today my parents and I will go to my cousin. Frisk's house, we will visit their house to see if everything is okay as before.

when I arrived at my cousin's house I immediately got out of the car and ran towards my cousin's house happily, while my parents followed behind while chuckling.

"slowly (m / n) !!" said my father.

"okay dad !!" I answered.

I slowed my running when I got to the front door of the Frisk house, then my parents stood behind me.

then my father knocked on the door of my cousin's house then not long after the door opened and showed frisk's mother while ... smiling?

"* gasp * brother !! why did you come to visit us did not say !!." said Frisk's mother.

"deliberately wanted to make a surprise for you only." said my father with a smile.

then frisk's mother looked at me with surprise "brother !! Is that ( m/n)!?" asked Frisk's mother.

then my father stroked my hair "true ... this is ( m/n)." replied my father.

then frisk's mother hugged me "wow! You're become more cute !?" said Frisk's mother.

then frisk's mother let go of her hug "come on please come in first brother !!" said Frisk's mother.

then we entered my cousin's house then I saw my favorite cousin Frisk above while peeking, I immediately smiled happily and went up the stairs. then I hugged frisk "frisk !! I miss you." I said happily.

then frisk hugged me back with a cute smile then they pulled me into their room.

"want to play with me again?" I asked.

frisk nodded then they took their picture book and gave one to me and we both drew together.

1 hour later ~

after an hour we both draw together, we both show our picture I drew frisk and I was wearing a crown while frisk ... drew a harmonious family.

I looked at the picture sadly because I know Frisk has a little bit of a quiet family.

I then hugged frisk gently gave them affection from me then frisk hugged me tightly.

then I looked at the door of Frisk's room saw my father and mother who smiled seeing us both hugged.

" ( M N)?" call my father.

I nodded then let go of my hug and then gave a frisk kiss on their cheeks. "Sorry frisk ... it looks like our game ends here first." I said sadly.

frisk then looked at me sadly but smiled then nodded. then I approached my parents then I looked at the frisk for the last time then waved my hand.

"see you frisk !!." I said.

and that's how meeting me and frisk at 10 old.

when (m / n) was 14 years old ~

now I am 14 years old and today I will visit my cousin frisk's house again but only with my father alone because my mother is busy with office work.

after we both arrived in front of my cousin's house, I immediately got out of the car with my father.

then we walked towards my cousin's door but when my father wanted to knock on my cousin's door suddenly we heard the sound of broken glass.

the sound made my father and I surprised then we both immediately went inside because they heard the sound.

When we went inside and I heard like a screaming sound at the door of Frisk's old man's warehouse.

I then told my father that the voice came from the warehouse, then we both walked towards the warehouse door.

my father opened the warehouse door slowly then we entered slowly. when we both arrived in the middle of the warehouse stairs suddenly we heard someone screaming below with the cry of a child.

"SHUT UP !! CHILDREN DO NOT KNOW YOURSELF, WHY YOU ARE NOT LIKE OTHER CHILDREN !!." shouted mother frisk !?

I heard the scream widen my eyes then I looked at my father who was also surprised.

then we heard the sound of broken glass again and the sound of a child screaming again, I, who knew who the little kid was, went upstairs slowly and then held the phone in my cousin's living room.

I then dialed the police phone number and told them all about what happened then I turned off my phone and waited for the police to come.

After a few minutes later the police came and I immediately escorted the policeman to the warehouse and arrested Frisk's parents.

I immediately hugged the crying frisk then I calmed them down. After the incident my parents brought Frisk to our house and looked after them like their own children.

4 days later ~

when I was sitting in the back garden chair while sleeping then I felt someone beside me and I pretended to fall asleep.

then I felt something wet on my cheek and then I heard someone's funny weird voice when that person stopped I immediately startled the person.

"wow !!" I shouted.

"ah !!" shouted the person.

then the person fell and then I laughed when I laughed I heard a sobbing sound, I who heard it immediately panicked.

"Ah !! I'm sorry frisk !?" I said panicked.

then I hugged those who were crying but they were still crying making me panic even more.

"How is this !? How is this" I thought in panic.

then I heard a laughing voice behind me and then I looked behind my parents who were laughing while holding their cellphones, I knew that it was just a prank and immediately shouted irritably.

"hehehe ~ (m / n) finally got into frisk prank." said my mother.

"(m / n) got prank from frisk ~" my father teased.

I felt my cheeks flushed at the words of my parents then I felt frisk hugging me while showing their sad faces.

"Is brother (m / n) angry with me?" asked frisk.

I was just silent, didn't answer Frisk's words, then frisk made a cute face that made me can't stand to see it. "Brother (m / n)? ~" Said Frisk.

I shook my head then I saw Frisk who has they cute face again !? "That's enough !! I can't take it anymore !?" I thought.

I immediately hugged frisk tightly and rubbed their soft cheeks "cute !!" I shouted.

Then I heard laughter from my parents again but I didn't care, then i see frisk smile make me smile back to them " i promise to protect your smile and you frisk." I thought.

but it seems I can't fulfill my promise.

(m / n) at the age of 17 ~

I'm now tidying up my belongings to go abroad to study there. after finishing tidying up my stuff I then went downstairs to say goodbye to my parents and frisk.

when i went down i already saw my parents and frisk who put on their sad faces. then frisk hugged quickly while crying and my parents also cried while hugging me.

"brother (m / n) don't go." said frisk.

I heard it felt sad "I'm sorry I couldn't fulfill my promise Fris." I thought.

I then hugged frisk tightly and cried too "I'm sorry frisk ... but I can't." I said.

I then let go of my hug and walked towards the taxi car that my parents had prepared to go to the airport.

when i got into the car i then looked at my parents and frisk one last time.

I then cried seeing Frisk's crying face then the car drove to the airport.

"I'm sorry frisk !! I'm sorry !!" I thought. then I cried in the car.