Azumanga Daioh doesn't actually have a storyline. Well, there's 10-year-old Chiyo, (Who is so unbelievely adorable), who's so smart that she's in high school, and she brefriends the most weird, yet hilarious classmates.
Azumanga Daioh is a set of 4 panel stories, and yet it works! The comedy is fresh and funny and the characters are amusing as well. There's Osaka, probaly one of the most slowest manga characters EVER! There's a time when she and Sasaki (a tall girl which the other charaters think she's cool and hard but in fact she has a secret love for cats but they are always biting her) are
talking about an abbreviation of hemeroids (don't ask) then they start talking about I think about dolphins, then another character ask what are they talking about then Osaka comes out with hemeroids again. Tomo is another charater. She's loud and overly competetive with Chiyo. Then there's the absolutely lazy teacher who sleeps in class and forgets where she's supposed to be. (That's the very first scene, she walks into a class and says she won't tell them her bra size then a student says her class is next door). There's a competitive teacher, a lesbian student and so on so forth.
Most of the cast are girls but there is a male.... Mr.Kimura.... an out and out perverted teacher who is a teacher souly for teenage girls. All the characters try to ignore him but he just appears!
Anyway, Azumanga Daioh is perfect for you if you just want a laugh. It's easy to pick up and read and will have you laughing all the way through reading it.