Everything started with Hana Kimi *_* <3 xD
I think it was 'Nobuta wo produce', long ago ;)
I watch more korean dramas, but my first japanese drama was 1 Litre of Tears.
P.P.O.I and then Stand Up!!.
I went through all of Yamashita Tomohisa's dramas that were out at the time >_>
Hana Kimi! It is the one that started the drama obsession after all :D
as far as i can remember.. my first jdrama was Zettai Karashi.. :)
Kimi Wa Petto...became a fan of JDramas after that...
Have I really never answered this question? hehehe

My first was Call Center No Koibito. I remember being intrigued by this whole new world of jdramas after seeing it. I don't know many people who have watched it, i don't remember it being that good, and I don't know how I found it, but obviously it was good enough for me to keep watching dramas :)
Gokusen, before I only watched korean movies, afterwards.... when I look at my dramalist, I'm overwhelmed how many hours I've spent on it. It's an addiction...
wow I really cant remember my first Japanese drama... as far as I go is... Oh! I just remembered (thank you coffee hehe) Kekkon Dekinai Otoko.
Glass Mask live action

I remember I was googling Glass Mask, hoping to find the next chapter, and I saw a link to VEOH, I remember reading "Live Action...what does that mean?" I clik on the vidéo and - surprise! - same story, sames character, only with real person !

This is the day I put a foot in DramaLand ^^
2007 Hana Kimi and it's still my favorite