Pokemon HGSS

Pocket Monsters HGSS-hen
ポケットモンスター HG・SS編

Prequel

manga

The plot follows the adventures of Isamu Akai and his Pokémon (Clefairy, Pikachu and Tyrogue) in Sinnoh. It is chiefly a gag manga using crude humor and slapstick.

Sequel

manga

The plot follows the adventures of Red and his Pokémon as they travel to the Unova region. It is chiefly a gag manga using crude humor and slapstick. (Source: Bulbapedia)