f!reader, established relationship, nerd x nerd trope bcs why not? we love nerds in this household, reader cosplays his favorite character
a/n: maybe a little self indulgent and bcs i miss cosplaying (i’m too lazy to sew my costumes) and i almost made kai say awesomesauce
rintarou was instructed to create himself a stoic persona on stage. he’d speak no more than 100 words in an hour long variety show, and even if the entirety of his group was laughing, he’s at the end of the line with the straightest face ever seen in the past century.
at home though— his home— was a second home to you at this point. his parents welcomed you with open arms and would even invite you to their family outings at times. currently lounging in rintarou’s room, you would often get bored waiting for him to get home after rehearsals or after his classes that you end up going around his room to dust off his figures and read the manga that were left unread on his shelves mostly due to his busy schedules. sifting through the pages, you really liked the stuff he’s been reading— not what you’d reach for in a bookstore’s shelves, but his excessive yaps convinced you to check it out.
“sorry, i’m running late! the line at the hobby shops are giga long!” he sent a text with a frowning sticker. it was the rush hour too, so it’ll take him roughly an hour to get home. bored out of your mind, you decided to piss yourself off even more and cosplay again. his favorite character was a cosplay you loved wearing, doing makeup for cosplay just pisses you off, but because your boyfriend celebrated his birthday recently, and to celebrate his favorite series’ new episode release, why not?
an hour and a half later, cosplay’s done, and he arrived home carrying three large paper bags which are all filled to the brim with goodies from his favorite franchises.
“i’m home, my love!” he cheered as he entered his room, only stopping when he sees you dressed as his (second) favorite girl.
“welcome home!” you cheered back, laughing at his frozen figure by the doorway. “how do i look?”
“you’re so awesome…” he responded in awe. cue to his half hour yap about why you look so good, and how his dreams of seeing the his beloved character stand in front of him and be able to hug and kiss her made his entire day— heck, it made his entire year!
though you weren’t sure whether to be happy or not when he started tearing up from beneath his rounded glasses. “you okay, rintarou?”
“they’re tears of joy, i swear!” he also swore that that was the best birthday surprise he got.
