Rascal Does Not Dream of Logical Witch (manga)

One night, Sakuta happens to see his friend Futaba entering a net café...while he's on the phone with ANOTHER Futaba?! It's another case of adolescence syndrome—and as this other version of Futaba very logically points out that it’s likely dangerous for doppelgängers to meet for one reason or another, he’d probably better let her hide at his place...?