「お互いの(おたがいの)道具(どうぐ)を交換(こうかん)して遊ぼう(あそぼう)」という提案(ていあん)

Long ago, there were two god brothers: the older brother 'Umisachihiko' who was good at fishing sea fish, and the younger brother 'Yamasachihiko' who was good at hunting mountain animals. One day, Yamasachihiko proposed to his brother, 'Let's exchange our tools and play.'