What would you do if one day you found out that, besides your father, mother, and two younger brothers, you also have a mysterious grandfather who suddenly wants to meet only your older grandson—not your granddaughter—and who lives in another world? And going to visit him would mean getting stuck there for a whole year. Who would refuse such an extraordinary adventure? So the main heroine, Olya Romanova, didn’t refuse. But the thing is, her grandfather isn’t really a grandfather at all—he’s a tyrant and a bully. And the guide between worlds, for some reason, remained silent about that. Well then, someone will have to prove that being a granddaughter is a great happiness!