It was 120 goalless and not particularly memorable minutes that led up to the penalty drama at small Gasten IP, a stone's throw from Kalmar's regular home arena Guldfågeln arena.
Kalmar certainly scored their first four penalties, while Mjällby's new acquisition Tom Pettersson put his on the crossbar.
So when Romario Pereira Sipião stepped up to score Kalmar's fifth penalty, he had the chance to secure a semi-final spot.
Then Noel Törnqvist saved.
- It was a little extra fun that they had been able to win there.
So then I thought that now I have to take one.
So I took it, it was nice as hell, he says.
When the home team also missed their sixth penalty (Noah Shamoun over), Ivan Kricak was able to shoot 5-4 - and a semi-final ticket - to the Blekinge team.
Mjällby will have home field advantage in the semi-finals already on Saturday.
On Monday evening, it will be decided whether the opponent is called Hammarby or AIK.
- It doesn't matter, it will be a fantastic atmosphere, whichever opponent we face, Törnqvist tells C More.