Sung Jin-Ah is Jin-Woo's younger sister. She is a hard-working girl who usually tops her exams and has a close relationship with her brother since they are the only siblings in their family.
As she grew with only Jin-Woo next to her with her father got stranded in a gate and her mother ending up in coma due to Eternal Sleep, Jin-Ah was always on the edge whenever Jin-Woo is in the hospital and wanted him to stop being a hunter.
Jin-Ah was at school on a weekday when a gate opened up inside her school. The school was thrown into chaos with the magic beasts rampaging within the school. Once orcs entered her classroom, they noticed that there was a human emitting magical energy, which was coming from Jin-Ah. The orcs who believed it to be a hunter attacked her.
A black veil of smoke appeared from Jin-Ah as high orcs protected her from the lower orcs attacking her. The boss of the dungeon, Guroktaru entered and began to attack the High Orcs with all his might. The boss grabbed Jin-Ah by the neck and was about to kill her, Jin-Woo approached the school. Thankfully, she had no injuries except the hand imprint on her neck.
After some time had passed since the school attack, Jin-Woo stated that Jin-Ah struggled to maintain her cheery attitude ever since the attack.
