World 1 yoon gye died a few years back during this fire, after aunt died won-woo joined the free govt and started killing espers and one day they attacked his house, won-woo hid crippled yoon under the bed and went outside to fight but in the meantime some other enemies set his house on fire where yoon died, afterwards he met
World 1 yoon gye died a few years back during this fire, after aunt died won-woo joined the free govt and started killing espers and one day they attacked his house, won-woo hid yoon under the bed and went outside to fight but in the meantime some other enemies set his house on fire where yoon died, afterwards he met sang ha(forgot her name) and the uncle.
And as for how he ended up in this world they explain it at the end of the story it's really sad and i remember crying after reading it. Also I highly recommend you reading the novel, it so good and the webtoon gets a little confusing sometimes and it also left out some minor details or convo that were in the novel.

OK so, in the world(1) he left crippled Yoon gye and then died in a dungeon only to transport to this world(2)where Yoon gye is still not harmed buuuuut what about the crippled Yoon gye from that other world(1)?who'll take care of him??