Summary
Intent on being an independent young woman, high schooler Himeyuka lives on her own in an unremarkable apartment complex in a corner of the city. But one day, she discovers her ordinary building has turned into something extraordinary! Her beloved castle is covered in childish scribbles - both inside and out! And waiting for her at the end of this rainbow-colored mess
is the perpetrator of the crime: a little boy named Rozione, who seems to know quite a bit about Himeyuka, though she has no idea who he is. Is he really just someones lost child, or is there a greater mystery behind his appearance?
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