She didn't think if it was the right choice or wrong but she wanted to do anything to get them out of their situation.
She looked towards them before she was going.
Ryuga got a glimpse of her standing on the balcony. He shifted his gaze towards her and found her looking at them. The zombie's hands were getting in between his view but he could see her just enough.
Sumi gave a smile and left his sight. She had gone ahead in the balcony towards the other balcony but the wall was blocking Ryuga's view so he couldn't see anything.
"Hey! Sumi! Where are you going?"
"Sumi!!!"
He called out.
But, she had already gone.
Ryuga couldn't do anything else but worry about Sumi as what she had in her mind was unknown to him. The zombies were right on their neck and if he left that spot then the zombies would surely invade the room.
He put his every force into holding the door and believed in Sumi.