If you're looking for manga similar to Gag Manga Biyori 3, you might like these titles.
This manga is about robbers, thieves and bad people and how they can't do anything because the good people are even worse than them. Who would've thought?
The school has a secret room where only exceptional boys are allowed to enter. You will witness the mysterious banquet of the “Bishounen Club” that is held day and night behind closed doors......!
Life is never dull in the Mushroom Kingdom, especially for the fearless plumbers Mario and Luigi. On their ever-present quest to find Princess Peach, the duo pairs up with Yoshi and embarks on a series of misadventures. Whether they're dodging Chargin' Chuck, stomping on some Goombas or squaring against Bowser himself, the mustached heroes and their friends always manage to live to tell another tale!
What if the world were to end today? What if you were lost in the desert without water? What if war broke out around the world simultaneously? Five normal healthy young men and women fantasize about groping XXX, or making someone drink XXX, etc., but why does it always have to end like that?