過呼吸ダンス (Kakokyuu Dance)

Background
The song was originally uploaded onto Niconico on August 3, 2011. It is Nashimoto-P's 26th song. Currently, it has recived more than 300,000 views and has gotten into the Nico Hall of Fame. It is also one of Nashimoto-P's most known songs.

While the song has many interpetations, it could be about a girl who is hyperventilating and dying.

This song is featured in the album Te mo Ashi mo Deru no ni, and the EXIT TUNES compilation album V love 25 ~Aperios~.