How about Kiribaku where Katsuki is Kiri’s online sugar baby. They have anonymous twt. They don’t know what each other looks like. Katsuki likes that he gets what he wants and Kiri likes spoiling his online baby

Katsuki will send Kiri a wishlist on Amazon. Done. Next day delivery.

His friends start to wonder why Katsuki always has new things but they don’t really question it cuz Katsuki isn’t poor so they just assume that he’s getting more allowance to buy himself more stuff

Katsuki will send Kiri pictures of him wearing or using the things Kiri buys for him (always somehow avoiding his face) and Kiri loves it because his baby’s body is to die for

Kiri tells his best friend Denki that he has an online sugar baby and things he buys for him. Denki tells his boyfriend Shinsou and Shinsou connects the dots when he realizes that the same things bought for Kiri’s baby are the ones that Katsuki gets

Of course Shinsou tries to ask Katsuki, his lab mate where he gets the expensive shit he wears and the blonde just yells at him. “Of course I fucking bought it, eyebags!!”

“Right” Shinsou says unamused, already convinced that he knows Katsuki is Kiri’s online baby but Kiri doesn’t need to know that Hitoshi actually knows his online baby irl right? They can play their game and he’ll just get entertainment out of it

One day Eijirou’s walking around campus and sees a hot blonde wearing the same shirt he bought for his baby. /I bet my baby would look just as good as that guy wearing the shirt I bought for him/

He starts noticing the blonde more wearing and having very familiar things but he has no time to really dwell on it because he’s graduating and he’s swamped with school work.

Meanwhile, Katsuki starts noticing a read head always looking at him and his things. /fucking creep. Must be a poor bitch. Sucks for him/

Katsuki tells his “sugar daddy” about this creepy redhead stalking him on campus and Eijiro drops his phone.

“What’s up, Eiji?” Mina’s voice snaps him back.

“Shit I think I know why my sugar baby is irl”

Mina gasps and shakes Kiri. “No fucking way! Spill the tea, babe!”

“So are you familiar with the angry blonde we’ve been passing by lately?”

“Passing by lately??? You mean brooding angry blonde that will scratch your face off if you even dare look at him for more than 5 seconds”

He nods.

“Holy shit, Eiji!!! Are you sure?”

“I think so?” He says as he picks up his phone and hands it to Mina, letting him see his “baby’s” message.

“No waaaaaaay” Kiri groans. “So fucking funny, Eiji! He thinks his “daddy” id a poor bitch. Holy shit I’m dying!”

Mina starts laughing hysterically, slapping his arm

“But how? Am I that creepy, Mina?”

His friend wipes the tears from her eyes as she tries to stop laughing. “No offense, boo, but you have terrible fashion sense. You’re a walking disaster and anyone who has eyes wouldnt be able to miss you.”

Eijirou starts to frown. He eyes himself, suddenly feeling a bit conscious.

“Well what do I do? I mean.. I can’t have them thinking I’m some creepy poor bitch you know?”

“I think you need to put that fat wallet of yours to good use, babe”

Mina takes her phone out her pocket and starts texting someone. “Lucky for you, rich pretty boy is willing to go shopping with us”

“You mean Todoroki? Come on, Mina! You know we have history!”

“Honey, kissing once when you guys were in high school for spin the bottle isn’t history. Please”

“Fuck! I guess...”