Either I can't figure out or there is bug. But once I gave Dr. Choppy documents and unlocked advanced operations. There is option to do advanced improvments on the Dog companion once I click it it says Double tap the passage or along those lines but I can't see that passage. and there is no way to return from it. Playing on android web version. Tried Joi Play same thing happens.
Finally got time to grind a little more here. Got on 8th floor first time went excellent then on return I have same issue like you page is blank no returnbutton no nothing. Also it seems that shintie town (d...ug dealing thing) is broken aswell have quest to sell 10 sold more than 30 still can't finish it