Lucius Modestus

okay, I’m not going to say that the anime Thermae Romae is “good” or that you “should watch it*” but I will say that it is an anime in which the bath architect Lucius Modestus gets transported to modern Japan every episode (from 128 AD); it’s surprisingly historically accurate; and Lucius does a magical girl transformation every time he tastes anything from the modern world. 

*which, if you wanted to, you could do here