A Stormy Shelter is the fortieth chapter in the Oushitsu Kyoushi Heine manga.
Just as Licht is about to leave his shift, a downpour occurs, preventing the carriage driver from being able to drive him and Heine home. The Café Owner offers to let them stay at his place for the night, which turns out to be above the café. Licht, being a pampered prince, is horrified by how non-royalty lives. When forced to eat commoner food, he snaps and asks for a servant, only to be told by Heine that most ordinary households do not have servants. The Owner seems to have figured something out about Licht's true identity.