I adjusted my time in Osaka by going to the Big Echo near the subway station, where I enjoyed solo karaoke. The staff suggested using a kids' room where I could take off my shoes and relax. I ordered a strawberry and berry parfait through the intercom for a sugar boost. The parfait was surprisingly large and delicious, with plenty of sliced strawberries, blueberries, whipped cream, vanilla ice cream, and frozen berries. It was a refreshing and satisfying treat. I highly recommend Big Echo for a casual and laid-back experience.