It's Summer! It's the Sea! It's Goma-chan!

Shonen Ashibe GO! GO! Goma-chan · Episode 13 · “It's Summer! It's the Sea! It's Goma-chan!”

The anime is based on the 4-panel comic strip drawn by Morishita Hiromi and published in Young Jump. The story describes the daily life of Ashibe (an elementary school boy) and his family and friends, including a pet white sea lion.