Miss Yukari's high school class is far from average. With ten-year-old genius Chiyo; dim-witted ‘Osaka'; weight conscious Yomi; loud-mouthed and energetic Tomo; and the ultra cool, animal-loving Sakaki, daily life is far from dull. Follow the day-to-day lives of this fun-loving group of girls as they progress through high school. From annual cultural festivals to gambling, from first dreams of the New Year to death-defying road trips, the lives of these students and their teachers are always exciting and new.
Oddly enough Onizuka from Yankano! and Sakaki from Azumanga Daioh have a lot in common, so if you liked one of them, you could check the other manga for a (somewhat) similar character.
If your looking for manga about super strong yankee girl\s and this weak average guy where there is lots of action and possibly some romance then Yankano! and Meguraian no Kimi might be worth checking out.
Both manga revolve around a non-delinquent guy being involved with delinquent girls. In both series he knows something that could compromise the strongest delinquent girl and he has to keep a secret or else...
Asuka Masamune is a manly man who's the complete opposite deep down - he loves sewing, cooking and all things girly! As his father left when he was a child to live as a woman, Asuka was raised to be the boy he is, but he can't forget his true nature. Now, as a teen, Asuka finds himself in the company of Ryou, a boyish girl he's fallen head over heels for; Juuta, a secret writer of shoujo manga who's modeled a character after Asuka; and a variety of others such as his self-proclaimed apprentice Yamato. Can Asuka learn how to balance his two sides and finally get the girl he loves?
Both manga feature a character who has a girly side and is hiding it from everyone else, except in one series said character is a delinquent girl and in the other it's a guy...
Both manga revolve around a non-delinquent guy being involved with delinquent girls. In both series he knows something that could compromise the strongest delinquent girl and he has to keep a secret or else...