The Spring 2004 season had 35 premieres in this guide, against 22 the season before. 18 are manga adaptations. Top genres: action (11%), science fiction (11%) and adventure (10%).
May 19, 2004, Manglobe, historical and adventure · 26 ep.
Samurai 7
June 12, 2004, action and mecha · 26 ep.
April 6, 2004, Gonzo, adventure and mecha · 24 ep.
April 3, 2004, TV Tokyo, science fiction · 358 ep.
Ragnarok the Animation
April 6, 2004, G&G Entertainment, fantasy and mystery · 26 ep.
Monster
April 6, 2004, Madhouse, drama and horror · 74 ep.
April 2, 2004, Gainax, romance and science fiction · 12 ep.
Legendz
April 4, 2004, action and fantasy
April 9, 2004, Studio 4°C, adventure and magical girl · 40 ep.
Tetsujin 28-go
April 7, 2004, action and science fiction · 26 ep.
AM Driver
April 5, 2004, Studio Deen, action and mecha · 51 ep.
Doki Doki School Hours
April 4, 2004, J.C.Staff, school and comedy · 13 ep.
Kurau Phantom Memory
June 24, 2004, Bones, drama and science fiction · 24 ep.
Mars Daybreak
April 1, 2004, Bones, mecha and science fiction · 26 ep.
Love Love?
May 3, 2004, harem · 9 ep.
Saiyuki Reload Gunlock
April 1, 2004 · 26 ep.
Phoenix
April 4, 2004, Tezuka Productions · 13 ep.
Green Green: Erolutions
Studio Matrix
Melody of Oblivion
April 6, 2004, J.C.Staff, horror and mecha · 24 ep.
The Marshmallow Times
April 4, 2004, Studio Comet, school and comedy · 52 ep.
Tenjho Tenge
April 1, 2004, Madhouse, action · 24 ep.
Aishiteruze Baby
April 3, 2004, TMS Entertainment, romance · 26 ep.
Grandpa Danger
April 4, 2004, adventure · 51 ep.
Kyo Kara Maoh!
April 3, 2004, Studio Deen, fantasy and adventure · 117 ep.
Midori Days
April 4, 2004, Studio Pierrot, romantic comedy · 13 ep.
Koi Kaze
April 1, 2004, A.C.G.T, drama and romance · 13 ep.
Mutsu Enmei-ryū Gaiden: Shura no Toki
April 6, 2004, Studio Comet · 26 ep.
Soreike! Zukkoke San'ningumi
April 4, 2004, Nippon Animation · 26 ep.
Dan Doh!!
April 3, 2004, Tokyo Kids · 26 ep.
Tsuki wa Higashi ni Hi wa Nishi ni
June 30, 2004, Radix, drama and fantasy · 13 ep.
Wind: A Breath of Heart
June 30, 2004, Radix, school and drama · 13 ep.
Pugyuru
April 12, 2004, school and comedy · 13 ep.
Hanaukyo Maid Team: La Verite
April 4, 2004, Daume, harem · 12 ep.
Duel Masters Charge
April 19, 2004 · 52 ep.
Gantz
April 13, 2004 · 26 ep.