First off, the infamous "Maid Cafes"
...And the male counterpart, "Butler Cafes"
"Cross-dressing Maid Cafes" also exist
The next logical step: "Granny Cafes"
"Bunny Cafes" are mandatory
"Cat Cafes" are DEFINITELY a societal improvement
"Falconer Cafes" are a thing too
Might as well throw a "Reptile Cafe" into the mix
Tokyo is also home to a "Vampire Cafe"
...as well as "Christon Cafes," for a Catholic vibe
Of course, nothing beats the newest addition to the scene: Tokyo's "Cuddle Cafe"