Tensei Fukushokushi no Kado na Shuuchaku wa Zenshin ni Matowaritsuku!

Shiro Mikami was leading such a busy life that she considered herself a corporate slave. One day, she discovered that her partner with whom she was together for four years had been unfaithful. Distraught over her failing life, she got terribly drunk and thought she had made it home, only to find herself in a back alley, overwhelmed by severe dizziness.

When Shiro woke up, she was lying in an unfamiliar bed in a strange room. She had been rescued by a foreign-looking man who introduced himself as Darius Fabre. However, Shiro's hazy memory flashed back to her attacking Darius in her drunken stupor. Embarrassment compounded by a hangover-induced nausea, Shiro ended up causing Darius considerable trouble.

Desperate to return home, Shiro rushed outside, only to find herself in a completely unfamiliar town. She had drunkenly fallen asleep and woken up in another world.