BangSul runs after Min, trying to restrain her from ending up stranded somewhere due to the traps but they end up falling into one and parting from the others.

«I trust you», WonPil replies to WuXin, in a low and shaken tone.
He clings tightly to WuXin and soon enough, he finds himself in front of the most gruesome sight possible: himsslf, undead, half decomposed. The zombie is dragging its intestines, that fell out of its belly through a deep and long cut, on the floor as it walks towards them.
WonPil screams and recoils, feeling absolutely dreaded.

Meanwhile, Aqua takes the lead of the remaining people and he and SangPil actually manage to find at least one of the enemies. A big fight happens and although with big efforts, they manage to kill the man.
There are two remaining enemies to kill, one for WuXin and WonPil and the other for Min and BangSul.

When they are done with fights, both with fears and enemies, they manage to join together again and since BangSul knows the place, he leads them to the exit.

In comments you can add what happened to the various characters before they leave.

Before leaving to the walk where he met with Ian and the mysterious sky dragon, he had a brief conversation with WonPil. They know to be both Korean and the other asks him if he can open a portal to Seoul, where he has to go to take back some… personal items.

BangSul avoids to investigate because he doesn't need to, as he sends Tero with him. After all, someone will have to open a portal to return, when WonPil is done. He wasn't in the mood to go to Earth himself.

Since Tero didn't even bother to warn him he was doing somewhere and it's getting late, he goes out to look for him.
He knows of all his mental issues, beside of his dreadful attitude, so it's natural to get worried when he doesn't return home. Although he knows he is not the type who would tell him when he decides to go somewhere, he would not dream that high.

He follows the tracks that lead him towards Ishida manor.

(With due changed to part his story from Tero's in a clearer way.)

> Yi Bang Sul <

> Born in Goryeo, Crown Prince, half Korean half Mongolian.
> Ended up in future Korea during a journey to Yuan.
> Started and ran a whole criminal activity. He met Tero when he arrived to future Earth too, at the hospital when he wanted the other guys about him.
> Tero worked for him in his organisation.
> He headed to Nortrig together with the others, when Haru and KiTae disappeared and PaOh gathered them all for his embarrassing show at the Imperial Palace.
> He and Tero were both entrusted to Yang Yang and met up with the others at school, despite he is a bit older than Tero.
> He was the one dating Prince ChangMi, at the times of the massive mess that involved the prince after the death of LianBi's main consort.
> His future self traveled back in time, from a distopic future with NoriYori, to make sure ChangMi wouldn't die and therefore, LianBi wouldn't leave the throne, resulting in the terrible happenings that followed.
> Present BangSul and future one co-existed in the same time, until present one died.
> While hiding with Gamja in a desolate mountainside village, he met LianBi, in holiday by the Winter Palace.
> LianBi got obsessed by his mysterious ways and did all he could to get him for himself.
> What happens next is well known.

(…)

When LianBi died, as he realises that the Zhou fled to another world, he tried to hunt them down to not let them escape. He got stuck in the past, unable to return to the present, just like the others.
He moved back on Earth and returned to his old business there, until he and Tero met the Nortrig guys again, at the time in which Ri was in Seoul.

Both he and Tero decided to test their luck back in Nortrig again, but in his case, it was mostly because he wanted to see Minho. He often buzzes around him, but never spoke to him nor approached him in a clear way. He realised that it was better that way, than trying to get together again.

He is always blind, with scars all over the top of his face, that he tries to cover with makeup. He can only see through the eyes of the Guardians, when he is merged with them.

Prince name: Yi BangSul.
Mongolian name: Aychi.
Dynasty: Goryeo.
Birthday: 24th June 1204.
Father: JungYeol of Goryeo.
Mother: Queen Atliugh.
Ethnicity: Korean-Mongolian.

Modern name: SeJun.
Affiliation: Positive Avatars.
* God: Isseiner.
* Leader: MoonBin.
Relatives: Tero - Legacy.
MoonBin - Adoptive father.
Haru - Adoptive mother.
TaMu - Biological brother.