Nanase Akira introduces the Milky Way, a once-failing café transformed into a popular hotspot by Yuuki Rin and a cast of eccentric waitresses. While the business thrives on the charm of its staff, the manager, Kenji, finds himself in a compromising position when his ex-girlfriend, Chihiro, tempts him into a secret encounter. Their illicit affair is abruptly interrupted by the other employees, leading to chaos and the revelation of unexpected romantic tensions within the café.