Genkotsu ni Kuchizuke (1981)

Genkotsu ni Kuchizuke 1981 / 拳骨にくちづけ 1981 / ゲンコツにくちづけ , Kiss to the fist bone , Kiss to the knack

Sugimoto Kaoru, contemporary sculptor, works hard for her new project , while at the same time, teaching children painting. Kaoru is also planning to marry Toshio but, soon fate complicates woman's destiny. Wanting to earn some extra money, before the wedding, she joins ‟Arafune Iron Works‟. Unfortunately, her carelessness causes an explosion at the factory. Carried by remorse, she decides to postpone the wedding plans and make up for the damage she caused in the facility by working there. (Source: Japanese = Wikipedia || Translation = XuongPhim)