Hi, I'm looking for a long running series to read, since all the manga I seem to read is done way too soon. To keep it simple and short I'm looking for a manga like Ranma 1/2 or Negima, things like that. Thank you for your time.

If you like Negima it's only natural to suggest Akamatsu Ken's earlier work "Love Hina". You'll get a lot more than a little comedy with that one, though.

There's also:
Suzuka
I''s
Video Girl Ai
Ichigo 10%
Midori no Hibi which is my personal favorite from these.
Angel Densetsu which is close, but the last chapter isn't releaed

This signature was recovered from Hades to serve in my rotting armies.

Skip Beat
Ouran High School Host Club
Gakuen Alice
D.N. Angel
Perfect Girl Evolution

[img]http://i56.tinypic.com/acfmfo.png[/img]

How many chapters min? Completed or Ongoing?

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Livin just to keep from dyin
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Immortal Rain
Angel Densetsu
Skip Beat
Tokyo Crazy Paradise
Kodocha
Hana Kimi
Anatolia Story
Glass Mask

Can you turn into a leopard?

Kare Kano
Nodame Cantabile
Ah! My Goddess
Good Morning Call
Koukou Debut
Love Monster
Love Lucky
Ouran High School Host Club
Open Sesame
Pastel
Rosario+Vampire
School Rumble
Seto no Hanayome
Shinshi Doumei Cross
Crossroad
Fruits Basket
Mekakushi no Kuni
Pretty Face
W-Juliet
Special A

It'll be helpful if you made your lists public though, so I can not repeat ones you've already read / are reading ^^ I've read plenty of romances like these~ So I might have 20+ series to suggest XD

At the top of my head, though, I can think of Hana-Kimi, at 23 volumes and completed it's my #1.

Hana Yori Dango, 36 volumes completed with an anime to go along.

Fruits Basket, 23 volumes completed with an anime too

I'm tired so I'll add in more later. -w- I better get off to sleep before I collapse on my keyboard