Top 10 Drama Manga of 1991
1. GTO: The Early Years - Shonan Junai Gumi
Ekichi Onizuka and Ryuji Danma are members of infamous biker gang, Oni Baku. When not out riding around, they can be found in school, trying to pick up young women. This is the story of the young Onizuka, who would later become the greatest teacher in Japan.
2. Fushigi Yugi
While visiting the National Library, junior-high students Miaka Yuuki and Yui Hongo are transported into the world of a mysterious book set in ancient China, “The Universe of The Four Gods.” Miaka suddenly finds herself with the responsibility of being the priestess of Suzaku, and must find all of her celestial warriors for the purpose of summoning Suzaku for three wishes. However, the enemy nation of the god Seiryuu has manipulated Yui into becoming the priestess of Seiryuu. As enemies, the former best friends begin their long struggle to summon their respective gods and obtain their wishes…
[Written by MAL Rewrite]
3. Sailor V
Aino Minako was just a normal girl until a talking white cat named Artemis transformed her into the super heroine SailorV! Now Minako's duty is to fight evil, but with already having troubles in her love life and regular interests (not to mention her school work), what's a girl to do with so much responsibility? Everyone's always hearing about SailorV in Takeuchi Naoko's other series, Bishoujo Senshi Sailormoon, so here's her story!
(Source: Starry Heaven)
In 2004, the series was re-released in two shinsouban editions. The last chapter of the original was split in two, hence it having 16 chapters.
4. Gunsmith Cats
Rally Vincent works by day in her Chicago gun store, Gunsmith Cats. But at the drop of the hat, she hangs up the "Gone Fishing" sign, straps on her guns and takes to the road in her muscle car to fulfil her other role - as one of Chicago's toughest, most respected bounty hunters. Her expert sharpshooting and driving skills are augmented by her partner Minnie-May's abilities with explosives of all kinds. And she'll need every bit of her skills, and those of her friends, because only she can bring in the highest bounties and the most determined, powerful criminals from Chicago's mob, characters who hold a grudge for life and have the wits and the firepower to outwit whatever the law throws at them.
Featuring some of the most authentically detailed firearms and automobiles ever drawn, author and artist Kenichi Sonoda has created a complex and supremely exciting story in the vein of hollywood action films, but with all the detail and dynamism of manga in this classic series.
5. Tenshi Nanka Ja Nai
In a rainy spring day, first year high schooler Midori Saezima saw a tall, handsome fellow student took care of a stray kitten. Without knowing the boy's name, she fell in love with him at the first sight. Due to sickness, Midori returned to school three days after summer vacation -- only to find out that she was "volunteered" as a candidate for student council. After a series of embarrassing accidents, both she and the mysterious boy she had a crush on, Akira Sudo, were elected as members of the student council. Being the first student council of this newly established high school, they are about to create "new traditions" for their school and a bittersweet love story for themselves...
6. Burning Pen
Hot blooded comic about... writing comics. There are actually a few series starting with Moeyo Pen (Burning Pen), then later on came the sequel series Hoero Pen (Shouting Pen).
9. Tonari no Onna
A collection of late-period Yoshiharu Tsuge stories, originally published 1981-1985.
Source: My Anime List
10. Arslan Senki
The country of Pars (a dead-ringer, geographically and culturally to ancient Persia) is embroiled in a war with the neighboring country of Lusitania and its religious zealots. The young Crown Prince, Arslan, begins a quest to reunite the shattered armies of Palse with his loyal general, Daruun, and a cadre of servants, commoners, and nobles, and he uses his charisma to forge alliances with neighboring countries in order to one day regain the land of his home.