A pulsating spectacle saw Origi convert debutant Neco Williams' cross in the 94th minute to make it 5-5 at Anfield and take the tie to a penalty shootout.
It was there where Caoimhin Kelleher saved from Dani Ceballos to allow Curtis Jones to convert the decisive spot-kick that secured the Reds' place in the quarter-finals of the competition.
"In this club that's one of our values - we just never give up regardless of what happens," Origi told Liverpoolfc.com post-match. "Today I'm just happy [for] the young guys.
"I was in that position once and seeing them play and enjoying the game, seeing the fans always pushing us regardless of what happens, I think it's just very special.