With her parents abroad, high school student Takahashi Mizuki has no choice but to stay temporarily in the tiny apartment of her uncle, Iwatani Naofumi.
She soon discovers that her uncle is not only an oddball who mysteriously disappeared last year and suddenly returned, but also a super-straightforward man with zero social skills who can use magic!
Using memory crystals her uncle brought back from another world, the two begin looking back on his “epic” adventures:
How he earned his first fortune using economic principles, how he explained magic with the laws of physics, and how his perfectly blunt remarks repeatedly infuriated three beautiful female companions from another world…
