Here's a Seto Kaiba x Reader one-shot that was requested by @doctorwhofan135 so enjoy~
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Your POV
I was walking through the streets of Domino City.As I was walking I passed a certain building I stopped in my tracks and looked up.It was the Kaiba Corp building.Then an old memory of my two friends played in my head.

~*~*~*Flashback~*~*~*~*~*~*~*~*~*~*
I was sitting down on the ground reading a book as the sun was reaching its highest point in the sky."Hey (y/n)!"Someone yelled.I looked up and saw a little boy with black hair run up to me.(Know who it is?)I giggled and said,"Hello Mokuba how are you?"I asked as I closed my book and put it down."Good,"he replied.

We were talking for a while when a boy with brown hair about my age came up to us."Hi Mokuba,(y/n),"he said."Hi Seto," "Hi big brother,"said Mokuba as he ran up to Seto and gave him a hug.I giggled at the scene as they both turned to look at me smiling.

End of Flashback

It's been years since I saw Mokuba and Seto when we lived at the orphanage.I really miss them but sometimes I wonder if they remember me.I started walking down the street again heading towards the park.

I stopped on a bench and sat down.I took out a silver heart locket that had a (f/c) gem in the middle.I opened it and saw a picture of three kids smiling.The one to the right was a girl with (h/l) (h/c) hair and (e/c) eyes,the one on the left was a boy with short brown hair and blue eyes,and finally the one in the middle was a younger boy with long black hair.I closed my locket and started walking home.

On the way I was so deep in thought that I accidentally bumped into someone knocking both of us down."Hey watch where you're going!"Someone yelled.I opened my eyes and saw the one person I haven't seen in years,Seto.I blushed a bit because one I bumped into him and that's sorta embarrassing and two I had and still like Seto since we were kids."S-Sorry I wasn't paying attention,"I said as I got up and dusted myself off."That was sorta obvious,"He retorted as he got up and did the same."I have to leave.My apologies for running into you Mr.Kaiba,"I said as I walked away.The reason I was being formal was because my step parents were rich people and I was always told to act like that.Also,I just wanted to mess with Seto a bit.

Kaiba's POV
As the girl walked away I saw a locket that looked familiar on the ground and picked it up.'I wonder if it belongs to that girl that bumped into me,'I thought to myself.I opened it and my eyes widened at what was inside.It was a picture of me, Mokuba,and our old friend (y/n) when we were kids and then something was carved into the other side of the locket.It said,"Though we're apart let our friendship always live on so long as we remember."Wait the (h/c) girl I bumped into was (y/n).I looked around to see if I could spot her but no luck she was already gone.

I started walking back to the Kaiba Corp building while holding the locket in my hand.Then a thought came to me how will I find (y/n) again.It was luck that I at least ran into her today but will I be lucky enough to see her again?Many other thoughts came to mind as I walked into the building and walked to my office.

"Hey Seto welcome back,"said Mokuba as he walked into the office."Hello Mokuba,"I said as I kept looking at the locket.Mokuba walked up to me and looked at the locket in my hands."That looks like the locket (y/n) had last time we saw her,"he said.I nodded before I said,"That's because it is hers."Mokuba gave me a shocked look before saying,"How is that possible?We haven't seen her in years." "She bumped into me when I was on my walk but I didn't know it was her until I found the locket on the ground," "Are you going to give it back to her?" "Yeah I will but I don't know where she lives or where to find her,"I said.

"Hey I have an idea,there's a tournament starting tomorrow right?"Asked Mokuba.I nodded in response."(y/n) has always been a talented duelist.Maybe she signed up to compete,"He said.Mokuba was right (y/n) always liked dueling.I started typing on my computer and pulled the list of the people competing and sure enough (y/n) was one of the duelist competing."She is competing but her name here is (y/n) Kuyama not (f/n) (l/n),"I said.(Sorry if the last name isn't that good)"That's probably the name she got from her step family,"said Mokuba.I nodded in agreement.'Well I guess I'll just have to wait and hope I find her tomorrow,'I thought as I got up to go to sleep.

~~~~Next Day~~~~~~~~~~~~~~~
Your POV
"Now Dark Magician Girl take out his life points!"I yelled as my opponent's life points dropped to 0.I had won my duel with my life points untouched.I smiled at my opponent and shook his hand."Good match,"I said.He smiled and nodded."Yeah it was fun even though I got schooled by you," "Hehe.How about we duel again sometime?" "Sure and next time I'll be stronger," "Hmmm we'll see?"I said as I walked away from my new found friend.

My locket fell off when I bumped into Seto yesterday so I'm hoping to find it.The locket was a gift from my late parents before they passed away and it's pretty important to me. If I don't find it I don't know what I will do.I was too absorbed in my thoughts and I bumped into someone again.I looked up and saw I bumped into Seto again.

"S-Sorry.Again,"I said as both me and Seto got up and he was chuckling."Your still as clumsy as you were when we were kids (y/n),"he said.I blushed at his comment and asked,"Wait you remember?"He nodded in response."I do but yesterday I didn't recognize you because it had been years since I saw you,"he said.He reached into his pocket and pulled out my locket."Here I thought you might want this back,"he said."My locket!Thank you Seto can you help me put it on?" I said.He nodded as I turned around and he helped me put it on.I turned around again and hugged him."I've missed you so much and Mokuba to,"I said as I let go of him.He chuckled again."I'm sure Mokuba wants to see you to so want to come with me?" "Sure thing,"I said as we walked off.

"(y/n)!"Yelled Mokuba as he ran towards me."Hi Mokuba,"I said as I hugged him back."Aren't you competing in the tournament?"Asked Seto.I nodded and said,"Yes I am but I dueled enough people for one day."We all laughed together as Mokuba left to do something else.

"Hey (y/n) can I talk to you in private?"He asked."Sure I guess,"I said as I followed Seto to the roof."So now that we're alone what did you want to tell me,"I asked.Then he did something you wouldn't see coming.The pulled me closer to him and I became a flustered mess."S-Seto are y-you o-okay?"I asked as I felt my cheeks become redder by the minute.Then he whispered,"I've always liked you even when we were kids but I never got to tell you.So I'm telling you now,I love you."With that he captured my lips in his.I kissed back instantly and put my arms around his neck.The kiss was ruff at first but became more gentle.We pulled away and he asked,"So I guess you love me back?" "What do think?"I said as I leaned in and kissed him again.

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I think it turned out good enough.Anyway if anyone's got more requests don't be shy and ask I would gladly make a one-shot for you.

~Adios 😄