soooo ive been addicted to regression fics so heres something i thought of. Enjoy! 

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Everyone was in the gym training for an upcoming practice match against Aoba Johsai on the weekend. Everyone was stressed especially Tsukishima since he is the key to the defense of Karasuno so he was training harder than he used to and would do all nighters  to finish his homework he couldn't do in the day.

He was also trying so hard to not regress since he hasn't regressed in a month and if he was seen in such a vulnerable position he would rather die than let him be seen by his team in a dinosaur onesie.

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It was a bright and sunny day when tsukishima felt oddly relaxed. He thought nothing of it but soon he realized he should've called sick.

When he reached his class and was answering the question sheet he noticed he could see clearly and could understand it, again he thought nothing of it. He should of realized that he was slowly but surely sliping.

Tsuki POV

I feel oddly refreshed but i buried the thought and thought it was just my body adjusting. I didnt know i was unconciously slipping.

When i arrived at the gym Sugawara-san went by me and asked"ayyy tsukishima did you grow any taller?".

I answered"wes a wittle" and suga looked at me confused but pushed the thought aside and we started stretching.

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I noticed on how everytime i block i for some odd reason get shorter and shortervto the point i was the height of asahi but luckily nobody noticed since we i was only a little taller.

Thats when it clicked. I was slipping. I forgot that whem im stressed i slip faster so i quickly ran out of the gym and in a bathroom nearby and sobbed till i hear a familliar voice.

"Y-Yams?"

Yamaguchi POV

"Y-Yams?"

Oh how broken that voice was. It sounded like someone exposed a very personal secret. Well, tsuki did say hr never ever wanted to tell the team and running away just looked weak to tsukishima so when he did he probably fully regressed.

"Little Rex? You okay?"
(I dunno y i called it little rex little dino works too)

"Papa!..i-i.."

Tsuki opened the stall and clinged on my leg for dear life. He looks so adorable and vunerable.

"Shhh u did got little rex now u wanna bye dino nuggets?"

The little nodded and started pulling towards the fast food place. Geez and im suppose to take care of you...meh your cuter this way.. (•///•)

Note;

So i have lost complete motivation to write anything haikyuu since it already ended and i cant think of anything to write soo im deciding after the QanA i would stop updating this book. And the ongoing stories yeah im also ending the haikyuu mafia story. I just lost all motivation to write anything haikyuu so im ending it.(of course il be ready other things related to haikyuu like ao3 but not much). Also the ongoing stories in this haikyuu one shot book yeah thier done,you can adopt its plot or whatever since im done weiting haikyuu(of course i love haikyuu it was the second anime ive ever watched but its time too let go [ maybe il return when i wanna rewatch it]) thanks for reading bye