This was requested by _i_am_kork
You were the ultimate decorator and Byakuya had ordered you to helo Nagito set up. He was weird but you were friends with him so you refrained from protesting. As you both set up, you taught Nagito about what colors go together and which ones don't. After a half an hour, it was finally set up.
"Good job, marshmallow head."
"Hehe thanks. That's means a lot coming from you."
"We're friends, Nagito."
"I know thaaaat!"
You both shared a laugh and parted ways.
After the party started, you simply stayed in the corner, occasionally waltzing to the kitchen to steal Byakuya's food. Along the way, you saw Sonia hiding from Kazuichi, Gundham in the other corner talking to his devas, Nagito eating a bagel in the OTHER corner, Hajime and Chiaki talking, Mikan getting bullied, and Byakuya sipping his drink. However, when you went to the kitchen, you'd always get flirted with by Teruteru, your boyfriend of 4 months and he only acts perverted around you now. He slithered his arm around your waist and kissed your cheek.
"Hello, beautiful~"
"Hello, Teruteru."
"What a coincidence I found you here, love~"
"We go to the same school. Also, we came here together."
You walked back into the crowd and talked with Hajime for a bit. Suddenly, the music cut and Ibuki started paying Welcome To The Back Parade. Imma make my oc come in, nothing cringy, though. You saw a girl with purple tipped hair begin to sob uncontrollably and Ibuki winked at her. The girl put the middle finger up at her and Nagito chuckled, Hajime sighed in disappointment, and Chiaki was nowhere to be found off playing Pokemon Go. You grew tired and left. You had no more energy and you got bored easily.
I lost motivation, sorry. Uh, I tried and this is pretty much gonna be the only time I add my oc.