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I need a fic about lego nerd Rin, lego is hella therapeutic 🛐

I want to expand on this and so here is— ✨

MY HEADCANON ON THIS AU!!!

Sae bought Rin's first ever lego set by himself with his own money. It was an impulse purchase, it's not even a significant date like Rin's birthday or for any kind of celebration, Sae just wanted to give Rin something different for once and he thought that Lego would be just perfect for Rin. He didn't expect Rin to be attached to it so quickly, but he's happy for Rin so he keeps buying him more and more until their bedroom is filled with lego and Rin had to convince him to stop buying more because they ran out of space and Sae could barely put his toys anywhere and Rin can deconstruct and reconstruct his toy as much as he can with Lego so please you don't need to waste your money nii-chan you can use it for yourself!

Rin's ideology and perception of self is forever changed. But his brother issue still prevails because Sae left him and came back so differently he doesn't fit into Rin's life anymore. Sae was the most important piece in Rin's world, Sae was all about rationality, calculation and efficiency—he was what Rin based his perception on. Sae was the most natural thing to understand and rely on. But nothing about the current Sae makes sense to him, he doesn't click like he always did, he was so different and Rin doesn't know how to react. Sae abandoned his dream—he abandoned Rin.

In a desperate attempt to keep Sae with him, Rin was forced to destroy and put himself back together again and again and again to fit the current Itoshi Sae in his life, yet no matter what he did, how much of himself he changes, or what shape he assumed, his brother never stayed. He doesn't fit anywhere in Rin's world. Because Sae is his rationality, it doesn't make sense for Rin that Sae doesn't make sense. Does that mean Rin is the one irrational here? What did he do wrong? Sae can't be irrational, wouldn't it make more sense that the world itself is irrational???

And so instead of thinking that Sae actually doesn't make sense (blaming and wanting to crush Sae, as per canon), Rin thinks that Rin himself is the one at wrong for not being able to make sense of Sae, he blames the world for making him irrational. It drives him to break over and over, and rebuild himself piece by piece. In the process, he makes himself more irrational. His anger doesn't show outwardly but rather inwardly—it doesn't explode like in canon yet it hurts him all the same.

Meanwhile Sae is a guy who doesn't know how to communicate himself through words well. He knows deep down that Rin's current state of madness was his fault, but he is at a loss as to how he could help Rin—because the current Rin doesn't make sense to Sae either. Their perceptions of each other are so disconnected and utterly unaligned. And as long as they don't talk for real, this cycle will never get broken and neither of them will get better.

Lego AU Rin understands himself perfectly. He can make distinct versions of himself by stacking pieces of himself differently. Each time it makes him think and act a tad stranger than the last which results in unpredictable decision making.

Isagi hates Rin's play style to the bone because every time he plays with or against Rin it feels like different guys altogether.

This Rin is more honest with his expression and body language, he doesn't have anything against people, his problem is with himself. He is rather sociable if a bit inept and territorial. Rin is insanely self critical. He is willing to sacrifice a lot for people he cares about.

Rin is trying so hard to fit his irrational self on this completely irrational world where the only thing that (should) make sense to him is Sae. This world is maddening and Rin is looking for something or someone who can anchor him even a fraction of what Sae had been. One that makes sense. One that doesn't drive him insane.

+Bonus! (Beware of fun and feels~)

Rin brought several sets of lego with him to Blue Lock at the beginning of NEL, he was itching to get his hands on something to fiddle with when he's got downtime. (One time he almost threatened a janitor to give him a tool kit so he could disassemble a treadmill by himself, it's very tempting.)

Rin assembles lego while doing some yoga stretch in the bedroom, he might look ridiculous while doing that but tbh he doesn't care. Rin is comfy and nobody ever told him not to do that.

His roommates Karasu and Nanase often joined him. Rin will never allow them to touch the themed set, but he let them play with the regular ones. He has so many of them and he can't use everything at once and he doesn't want it to get wasted, so he is willing to share.

Who would've known that being Itoshi Rin's mentee will involve getting tutored on how to build lego structure? Not Nanase, for sure. But he enjoys every single moment of it because Rin looks very happy when he's playing with lego.

Nanase had never touched a lego in his entire life—he lived in the countryside and these things are kinda expensive you know? So he just makes whatever shape and most of the time it is senseless, Karasu makes fun of him.

Karasu is a pro at separating the bricks, he shows off how he can detach 1x1 with his bare hand.

Somehow it becomes their little bonding exercise and their room is filled with rows upon rows of lego structure. Nanase is eager to recreate his home in lego to make Rin understand him better.

Little by little he is cementing himself as a point of rationale in Rin's nonsensical world. Rin doesn't know if it was good or bad but he still keeps that piece of Nanase in his mind, not allowing it to slot in the construct called "Itoshi Rin" just yet. Nanase is simply that simple to understand and just as easy to love.

One particular morning Nanase didn't notice a lego brick was stuck on his sleeves, it dropped to the ground on his way to the canteen and a barefooted Shidou stepped on it. Cue loud expletives from the pink cockroach who swear to hell and back he will find out who brought lego into Blue Lock and make them run on it.

That threat doesn't really work for Rin because he grew up stepping on lego it doesn't feel like anything in particular. Though Karasu and Nanase are careful not to let anybody but themselves and the faculty staff have a look inside their lego filled dorm room, they dreaded the day they have to move out of that room.

Karasu started to prank people to step on lego bricks and willingly spread the chaos to the other strata by giving Otoya and Hiori some lego pieces, they might rope Aiku into this. They're thinking twice about Manshine cuz Chigiri might step on it and get shooketh he hurts his leg which Ego will (maybe) chastise them for sabotaging an enemy and also anyway they don't know who they're going to reach out for in Manshine.

They unanimously threw MC under suspicion of being the culprit of this prank cuz none of their players stepped on lego lmaooo

If you reach this far, thanks for reading this long rambling.

I love you~~💚

You know what toys would’ve been perfect for little Rin?

Legos

They’re literally made to be put together and destroyed

and also with rin js casually adopting nanase and is like... no i wont help you, you suck but do what i say to get better.

What good deeds did Rin do in his past life to have these moments with the members of team kindness

It should’ve been me :(