Can someone please help me translate "zukkyun" (spelling?). I heard it in a song (and saw it in the lyrics) but I don't know and can't find what it means. The translator mentioned that he/she guessed it meant something like "being struck in the heart with a love arrow"...? The context, if needed, is thus:
[...]
Senchimentaru naito
Ikou zukkyun to
genjitsu toohikoo

However, I think that is wrong and that is should be
[...]
Sentimentaru naito
Kako o zukkyun to
Genjitsu to hiko


The song is Ii　ne (いいね) by Babymetal.