Hama-chan and Su-san go fishing during a business trip, but Hama-chan has to give a lecture on Su-san's behalf in a case of mistaken identity.

Su-San invites Hama-chan to go fishing at a place close to his heart after learning about Hama-chan and his wife's fertility problems.

Hama-chan and his wife are ecstatic about their long-awaited pregnancy. Meanwhile, Su-san's nephew joins Hama-chan's department at the company.

Hama-chan shows up to work with his son on his back when his wife goes to her class reunion and his mother throws her back out.