High schooler Nozomi Koiwa wakes up and discovers she’s lost her memories...and a whole lot of height. Now the size of a soda can, she flees from a feline assault into the disgusting den of Yume Okubo, a drunken shut-in NEET who’s terrified of people and hasn’t been outside for months. Between falling beer cans and deadly insect traps, Nozomi survives long enough to convince the airheaded Yume that she’s a figment of her imagination who’s come to save her from hitting rock bottom...all while investigating how she ended up funsized. But despite their differences—height, brains, and otherwise—each half of this quirky combo might just be what the other needs!
When Nozomi’s explanations don’t add up, even airheaded Yume figures out she’s real…which only fuels her fantasy of having Nae and Nozomi as her very own dolls—frilly dresses included. But when Yume remembers Big Nozomi and tails her for questioning, the origin of the mini-people is finally revealed…but not before disaster strikes. Now that their lives are on the line, can a shut-in like Yume brave the outdoors and fight for her (only) friend?