Aizawa-San Zoushoku. The "Frail Princess" Shino Aizawa confesses to high schooler Souta Mizutani, but there is a catch— there are four of her! It turns out that Shino transformed into three other men after he mistakenly fell through a dark hole in the earth. They are all essentially the same individual as Shino, but apart from the first, each of them is manifestations of a different part of their personality: their bravery, their humiliation, and their desire!
Although living with one girlfriend is proving difficult enough for most men, Souta, on the other hand, now has to deal with the burden four times over. Although his attention is based mainly on the original Shino, in this series of sweet, funny, and heart-warming antics he will also have to tend to the needs of the duplicates.