background to the song via wiki: "The lyrics talk somebody who has just moved to Tokyo for work, and the title references the Marunouchi Line, one of the major train lines in central Tokyo, as well as several neighbourhoods reached on the line, such as Ochanomizu and Ginza. The song also mentions many guitar-related words, such as the Rickenbacker 620 model guitar, Marshall amplifiers, a Pro Co RAT pedal amplifier and Gretsch guitars. Blankey Jet City vocalist Kenichi "Benji" Asai is mentioned in the lyric, "And then I strike some Benji on my Gretch." (そしたらベンジー、あたしをグレッチで殴って Soshitata Benjī, atashi o gurecchi de butte?)[4] The 2008 English lyrics similarly keep the references to places in Tokyo and to guitar paraphernalia, but further mentions Kurt Cobain and Nirvana."
So it's pretty much like Miley Cyrus' Party in the USA (arriving in LA-LAX) except in Rock. not to mention it's like x1000 bettah (actually it's more like young prospects going to Cali or New York to start a new life, but yeah):
With joining this company comes payment
I love Tokyo, but there’s nothing here
I want a Ricken six-two-oh (620)
Water even a 19 year doesn't have (have no idea what the connotation is)
The smell of my Marshall sends me flying high
It just takes me to the top every night
My Rat (her musician ex) is one of my tools of the trade
And when I feel Benji's music in my lungs, I trip (as in I'm tripping out)
Lately I’ve felt like a cop in Ginza
Even if you cross national borders, all that prosper must decline
Write me out a receipt
There's no tax accountants in Korakuen
Later, I want you to marry me
It’s just a bedroom romp every night
I want to be the girlfriend of a pizza shop owner
And then thrash out some Benji music on a Gretsch
Live your youth to the full
When you catch the last train home, make it to Ikebukuro
The smell of my Marshall sends me flying big-time
It just takes me to the top every night
My Rat is one of my tools of the trade
And when I feel Benji's music in my lungs, I'm tripping
Later, I want you to marry me
It’s just a bedroom romp every night
I want to be the girlfriend of a pizza shop owner
And thrash out some Benji music on a Gretsch
I'm lookin' for-
Ready to die x5~
Yeah, but time goes by