深海シティアンダーグラウンド (Shinkai City Underground)

Background
"Shinkai City Underground" is TanakaB's VOCAROCK song uploaded on November 22nd 2011 sung by Kagamine Rin. It was first uploaded on Piapro on March 31st 2011, however later on November 2011 TanakaB rearranged the song and also added a PV to the song Shinkai City Underground. Later it's also featured in the Exit Tunes compilation "Vocalogemini"

This is TanakaB's biggest hit, on November 25th to November 28th the song managed to maintain the position number one on the VOCALOID daily ranking page. On December 1st, a week after the song's upload it reached Nico hall of fame for exceeding 100,000 views.

The song has no definite meaning, the lyrics clashes and jumps from one topic to another such as talking about a four leaf clover, rafflesia, or even a paranoid princess. It centers how Rin was in a place called "Deap Sea City Underground".