Mutsu gets sick of Sakamoto after his idea of selling bags with room for 50 million falls flat, and dumps him in the ocean.
seems to be under the impression 
that he's the main character in this tale,
يظنّ أنّه يملك الدّور الرئيسي في هذا الفصل على ما يبدو
parece achar que é o 
protagonista da história,