"Bonyuu-chan wa Dashitai" is a hentai anime series following Tomomi Sakurazawa, the smart and stunning Student Council President who hides a secret: she suffers from hyperlactation syndrome, producing large quantities of breast milk that require constant relief. When a lecherous classmate discovers her condition, he devises depraved tests to exploit her, forcing Tomomi into various provocative situations to both satisfy his desires and help her manage her relentless condition.