(The Saja Boys are still here in this and the ships are canon for this also. Except for Rujinu. You are with Jinu.)
You are Rumi's twin sister. Both of you are a part of Huntr/x. But most people notice her instead. Until the Saja Boys came in. That stupid demon boy band. But Jinu was interesting. He knew about you and Rumi being demons but didn't tell your friends. You and him met up sometimes at night. And when you all had to fight Gwi-Ma, he helped.
You and your friends finally defeated Gwi-Ma. Your demon marks are still visible but not as dark as they used to be. They're a bit translucent. At least you and Rumi don't wear long sleeves anymore. That was annoying. Your friends know now but since Gwi-Ma is dead, they still stay by your side. Zoey is now with Mystery and Mira, Romance, and Abby are still fighting like usual. Mira swears she hates Abby more than Romance but you know she still cares about him. Rumi is taking a well deserved break from everything. And you are with Jinu. Everything is perfect.
One morning, you are standing in your bathroom. You have a crop top on and stare at your marks. You run your hand across your neck and smile slightly. You're happy that you don't have to hide anymore. Jinu comes up and hugs you from behind. He stares at you through the mirror.