Oh dear lord, and I just had to be a slave to curiosity - how...when...what to do to get rid of this image?! These uncontrollable laughing fits are NOT helping ... read this ages ago, but just couldn't remember (maybe I just blocked it out?) this part ...
they added the one-shot the manga originates from afterwards, so you need to look for the giraffes head in vol.1 ch.1 page 9 - upper first panel....faaaaar to the left. I'll just leave this info here and slowly vanish silently ^^
Ch 1 on page 9. FIND THE GIRAFFE'S HEAD. And you will know why this manga is awesome.