大切な(たいせつな)釣り針(つりばり)を海(うみ)に落として(おとして)無くして(なくして)しまったから

Yamasachihiko, who tried to fish in the sea using Umisachihiko's reluctantly exchanged fishhook, caught absolutely nothing, and to make matters worse, dropped the precious fishhook into the sea and lost it. The angry Umisachihiko blamed him fiercely, saying 'I will not forgive you unless it is the exact same fishhook!'