Osomatsu-san Oneshots

Protective (Father! Karamatsu x Daughter! reader x Yandere! Ichimatsu)

For CryptOfDrawings
Final part of The Promise

Warning:
Character Death
Feels
Gun use

It's been about 4 weeks since Ichimatsu and I did it. We still haven't told my dad and would keep our affection on the low. Though these past 4 weeks Sami has seemed to have something on her mind. Though whenever I asked she would say it was just her worrying about her studies. Which made sense considering both of us were close to graduation. We both went to a 2 year college and we were almost done.

Well today I decided to invite her for dinner. She seemed very hesitant, especially when I told her that three of my brothers and my grandparents wouldn't be there, they were busy. It took a lot of begging and puppy eyes to convince her to come over. When I hear the quiet knock I rush to the door. I open the door to see Sami. I smile and hug her tightly "Hi Sami!" I greet happily and she hugs me back with a smile. "Oh hello Sami." I felt her tense and I turn to see my dad and Ichimatsu. "Hello Mr. Matsuno." Sami greets and my dad smiles.

"Y/n~ can I speak with you?" My dad say with a smile and I nod "I'll be right back Sami." I say and she hums "o-okay..I'll just talk with Jyushimatsu." She says and I smile before walking with my dad to the kitchen. He gave me a smirk and I hum "What?" I ask and he smiles "oh nothing. I just would have liked to know ahead of time that your girlfriend was coming over. It's nice seeing you to finally together." I blush and laugh

"Dad~ She isn't my girlfriend and sorry I didn't tell you. I guess it slipped my mind." I say and he hums "oh okay, sorry I just thought" "it's okay." I say with a smile before pausing "wait you used the word finally. Why did you-" "y/n." I turn to see Ichimatsu "I think Sami is getting..bored." He says and I blush a bit before smiling "thanks for telling me." I say and walk to the living room with him and my dad.

I sat by Sami and Jyushimatsu as we talk about random things. We were mostly just talking until my dad had dinner ready. Jyushimatsu seemed really interested in my studies while Sami kept asking how I was and if I was okay. "Heh Jeez Sami. Yes I'm okay. I don't know why you are so worried." I say and she hums "I'm just...checking to see if you are happy and well." She says and I saw her eyes glance to Ichimatsu who was busy petting a cat but I just shrug it off.

When dinner was finally served I saw that my dad had prepared sushi which made me smile. I honestly loved sushi. The five of us moved to the table and I sat between my dad and Sami while Jyushimatsu sat beside Karamatsu. Ichimatsu was beside me but she squeezed her way between us and I saw annoyance on Ichimatsu's face. I went to pick up a piece of sushi but pause. For some odd reason when the smell hit my nose my stomach churned. I hum but shrug it off before eating it.

After a minute of eating and chatting I felt my stomach churning. I huff and held my stomach "You okay sweetie?" My dad asks and I hum "yeah I'm fi-urp" I cover my mouth and rush out of the room to the bathroom. I rush to the toilet and threw up what I just ate. I pant softly and wipe my mouth before going to the sink. I wash out my mouth and head back to the living room.

Everyone looks at me as I sat down. "Are you okay y/n?" Jyushimatsu asks and I nod "I just got sick all of a sudden." I say and push my plate away "and this is not making it better. It smells." My dad hums and places a hand on my forehead "well you aren't running a fever and no one else is reacting badly." He says before I was turned around to face Sami who had her serious face on. "Y/n I need you to be honest with me, okay?" She asks and I nod slightly confused.

"When was your last cycle?"

I hum and tilt my head. She sighs "Your period! When was your last period?" She yells and I shy back "a-about a month ago." I say before thinking "actually my cycle is late come to think of it." I mumble and I heard my dad exclaim "EH?! By how long?!" He exclaims holding my shoulders. "About 4 weeks." I say and he stood up pacing around the room.