Spoiler
He doesn't until the most recent chapter rn
He will not meet his sister. They're all stuck in that world.
i mean Will his sister also gonna be summoned to that world?
most recent chapter?u mean in the novel?
Yea
Sad to say but no. It would be a bit exciting having another girl version of Kiyoung. She is just mentioned as the remaining family of Kiyoung in the real world but she doesn't have any significant role in this story
can y'all spoil me when kiyoung gonna meet her sister?:3