What was your first manga that was never turned into anime?

[Fire_Sorceress_Phoanexa]

beast master, backstage prince and black crow

[Tasticles]

This thing called "B.B. Explosion"
I guess it was pretty short with 12 volumes or something.

[dizzah]

kamichama karin chu
kyou, koi wo haiimemasu (there was an ova for it, but i don't really count that as an anime)
hiyokoi

[Syrrie]

Probably one of the Pokémon manga (Adventures or Electric Tale of Pikachu), if... those count.

[Vacuums]

youtastelikefishbiscuits

Absolute Boyfriend.

[Crimson Ankh]

Psyren.

[The Superfast Jellyfish]

I don't exactly remember, but I think it was either Absolute Boyfriend or Beauty Pop. sweatdrop

[fairy-phoenix]

I guess I am gonna have to say The Queen's Knight... unless they already made an anime show that I didn't know about.