Yakuza no Kyuukon Jimi OL wa Aru Hi Totsuzen Dekiaisareru

Yutako Yamazaki is an unremarkable office worker whose routine is disrupted when Yukiharu Okudera, a yakuza member, becomes infatuated with her after helping her retrieve her glasses. He immediately proposes marriage, which she declines, though she agrees to exchange contact details. Yukiharu continues to pursue her, and despite initial fear, Yutako gradually grows fond of his attention. Her feelings shift from apprehension to affection, but complications arise when members of a rival gang target her.