Top 10 Ecchi Manga of 2003
1. Negima! Magister Negi Magi
After graduated from a magic academy, 10-year-old genius boy Negi Springfield was assigned to a huge Japanese school as an English teacher for practical training. To his surprise, the 8th grade class assigned for him is all-girl. In addition to teaching (and being teased by) those 31 pretty girls while trying to keep his magic capability in secret, he's also looking for clues about his father, who was once known as "Thousand Master" but mysteriously disappeared years ago.
(Source: Anime News Network)
2. Zero In
Kou Shiraishi was your standard high school boy with lots of problems, mostly bullies, until the day that he meets Mikuru Nazume during a bank heist. Not only is Mikuru the school idol, but she's also an agent for Minkei, a covert paramilitary section of the National Police Agency. They team up as Kou and Mikuru journey to become stronger, both in their own way
3. Today In Class 5-2
A school-life comedy with anecdotes about fifth-graders focusing on Ryota Satou and his friendships, especially his childhood relationship with Chika Koizumi. (From ANN)
4. Girls Saurus DX
Continuation of Girl Saurus.
5. Chocotto Sister
Haruma Kawagoe is an only child. A long time ago, at Christmastime, his mother miscarried the child that was to have been his baby sister. That night, young Haruma knelt down and offered up an earnest prayer: "Please make my mother well again, and please give me a little sister." Years have passed, and Haruma has nearly forgotten his prayer. But Santa hasn't.... one Christmas, when Haruma is least expecting it, he gets an unusual present - his sister.
(Source:Anime News Network)
6. Saru Lock
Yataro Sarumaru, nicknamed Saru, is an ace in the locksmith trade and is obsessed with girls. This (almost) average teenager is given a hardly ordinary mission which marks the beginning of his adventures!
Itadakimasu is a series from the manga-ka of Oboretai, Mata Mata Oboretai, Ningyo Ouji, Haa Haa and Aisuru Hito. Its about a young divorcée who works in a bridal salon beneath her ex-husband who wants nothing more than for Naeko to forgive his cheating and she wanting nothing more to do with him. By chance she runs into the young man Ouji, who is in her dreams and they are going to get married?
8. Yubisaki Milk Tea
Through a series of coincidences, Yoshinori wound up having to fill in for his beautiful older sister as a model for a bridal gown. Now, he has discovered that he has a liking for cross-dressing, and that by doing so, he is learning a great deal about what it means to be a woman--and a man. (Source: Tokyopop)
9. B Reaction!
Onodera Kensaku, a self taught martial artist, undefeated street fighter gets his ass whipped by a girl. Not by just any girl, but his home room teacher Asato Nanae and her High Left Kick. You'll see brilliant pictures of high quality in shading and facial expressions, with a twist of pervertal activities and one liners that will have your sides spilitting as you follow in the wake of Onodera's adventures to defeat Asato. (Source: mangaupdates)
10. Hiro Mashima's Playground
A collection of one-shots by Mashima Hiro
1. Magician (マジシャン)
2. Fairy Tale (フェアリー・テール)
3. Cocona (ココナ)
4. Plue no Bouken Nikki II (プルーの冒険日記II)
5. Bad Boys Song (バット ボーイズ ソング)
6. Magic Party (マジックパーティー)
7. Christmas Hearts (クリスマス ハーツ)
8. Kongou Sentai Mixture (混合戦隊ミクスチャー)