When Sekai gets sick and asks Setsuna to take over for her at her part-time job at Cafe Radish, Setsuna takes the job even though she doesn't like the revealing uniforms and has no experience as a waitress. She only continues because she learns that Makoto lives nearby; it’s the chance for Setsuna has been secretly hoping for: a chance to start something special with Makoto. However, instead of seeing Makoto more often, she has an unfortunate accident during her first meeting with Inori, who ends up becoming her roommate.