Making a review just because there isn't one yet. If you are looking for a serious manga, look elsewhere. This one volume, thirteen chapter series is fun, comedic, and quick/easy to read.

Story:
7/10 Two brothers, Mario and Luigi, are hapless plumbers (I'm sure you already knew that) who were working on the pipes in Princess Peach's castle. When out of nowhere some giant pipes start jutting up from the ground through which miscellaneous Koopas emerge to wreak havoc. Bowser also makes an appearance in his koopa copter and gives Peach an ultimatum. Either marry him or her people will be turned to stone. Thus the adventure begins when everybody jumps through the giant pipe.

Art:
7/10 What do you expect? It was made in the early 90's and is based on a video game. The art could be described as cartoonish. I happen to like it.

Characters:
I'm giving them a 9/10 just because. It's the characters we all know. Mario, Luigi, Bowser, Yoshi, Peach, the koopalings, etc.. And if you have stuck around to read this review until now then I'm sure that you, as do I, love them. Or you're at least a fan of them.

Enjoyment and Overall:
I'd say it is a solid 7/10. I enjoyed this and reading it brought back a lot of nostalgic feelings. If you are a fan of Mario in general or if you just want something to pass the time then this is definitely worth the read.