CHIKYUU GA OWARURASHIINODE, IMA KARA KIMI WO KANKIN SHIMASU.

Wakatsuki Shino, 29, is your average office worker in her 30s who's about to marry a colleague. But... the morning after drinking with her boss, she finds herself "confined" in his apartment under the pretext of "protection." The reason: the Earth is about to end... Boss, are you serious? A slightly strange romantic comedy for adults. (Source: Kadokawa, translated) — Description from AniList community (anilist.co).