Junior Negrao's brace sent Ulsan through where they will face a Vissel squad that barely eked out a win over Suwon.
Former champions Ulsan will face Beijing while Kobe's quarterfinal debut will be against two-time title holders Suwon.
Vissel's passage to the quarterfinals may have come at a cost while Suwon shocked Yokohama with a comeback win.
Shanghai SIPG FC looked to their bench to top Jeonbuk as the K League 1 champions lost their second AFC Champions League match of the tournament.
Terry Antonis is leaving A-League club Melbourne Victory for South Korea.
Less than a year after turning his back on Perth Glory to join Brisbane, Adam Taggart has left the A-League club.
Jeonbuk, 21 points ahead of Suwon in South Korea's K-League, had been expected to win but conceded three goals in the final 15 minutes.
Australian national team defender Matthew Jurman has a new home after signing with Saudi Arabian club Al-Ittihad.
Sydney FC have kept their Asian Champions League knockout hopes alive with a stunning 4-1 win over Suwon Bluewings in South Korea.
It was the wake-up call Sydney FC needed, with an opening ACL loss leaving the A-League champions everything to do in China next week.
For all the talk of Sydney FC being a shot at lifting the Asian Champions League trophy, they will have to do better than their 2-0 humbling by Suwon
Ex-Sydney FC defender Matt Jurman admitted that it was a "weird feeling" to watch his former teammates win the A-League Grand Final.
A brace by Ricardo Goulart gave Guangzhou Evergrande a 2-2 draw with Suwon Bluewings and a place in the knockout stages of the AFC Champions League.
Powered by their Brazil imports, Guangzhou Evergrande won 5-0 at Hong Kong's Eastern SC on Tuesday night to go top of AFC Champions League Group G.
China's Guangzhou Evergrande drew 0-0 away to Kawasaki Frontale on Wednesday to slip into second place in Group G of the 2017 AFC Champions League.
Evergrande were held to a 2-2 draw by South Korea's Suwon Bluewings in their last game in the Asian Champions League.
"Their set pieces are very dangerous, so a draw is acceptable," said Guangzhou Evergrande manager Luiz Felipe Scolari.
Chinese Super League champions Guangzhou Evergrande were held to a 2-2 draw by Korean side Suwon Bluewings in the AFC Champions League on Wednesday.
Matt Jurman has opened up about the agonising decision to leave Sydney FC and take up an offer at one of Asia's footballing giants.
Sydney FC's championship aspirations have copped a massive blow with confirmation defender Matt Jurman has played his final game for the club.