Board Thread:General Discussion/@comment-6986530-20170803220318/@comment-2602:301:77AD:9270:958F:53F6:53BD:4AA4-20180311163849

I suspect you either misread the hiragana (it's pretty clearly "itsuki") or you were looking at a source that did.

いつき (which, handily enough, is the actual reading of the kanji), not いっき.