User blog comment:IamJakuhoRaikoben/Chapter 468: Memory of the Stars, Review./@comment-7418318-20160110092936/@comment-7418318-20160110094151

Maybe Porly went to the toilet and thus Happy didn't see her. Without seeing the doctor, going to the infirmary is still a logical choice, since that's the first place to look for her (except for the bar perhaps, but that can be seen from the entrance door).