at a walking pace

The author, Iwao Matsumoto, is a creative director well-known for creating numerous commercials, such as "Tanrei Green Label" and
"Shirokuro Tsukenai Cafe au Lait."
He also wrote the lyrics and music for the hit commercial song "Pikmin - Ai no Uta."
(That's the song "Kyō mo hakobu, tatakau, fueru, soshite taberareru~♪")
The other author, Naoko Sakai, is an illustrator whose unpretentious style is very captivating.