"Tokai" (都会) means "city" or "urban"; "Inaka" (田舎) means "countryside" or "rural". Normally, the title would be read as "Tokai Inaka" (とかい いなか), but in this case, it is meant to be read as one word, "Tokainaka" (トカイナカ).
There is a minor dance to "Tokainaka no Kare". It shocked fans to see that Mitsui Aika, who stopped dancing after "Only you", was once again dancing on stage.
This is the only SATOYAMA Movement single not to have a Music Video.
The instrumental of Tokainaka no Kare was the theme song of GREEN ROOM.