こちら、幸福安心委員会です。 (Kochira, Koufuku Anshin Iinkai desu.)

Background
The lyrics tell everyone that being happy is their duty, and that the Happiness and Peace of Mind committee will support them. 'Its your duty!' is repeated throughout the song. Miku appears to be the spokesperson for the Committee, forcing their citizens to pretend to smile and be happy. Anyone who fails to comply is executed, you can hear roaring brainwashed crowds behind Miku. The song's tone changes dramatically at the beginning and end to sing the truth of how people feel.

The lyrics mention '', a creature that is a water elemental/water nymph of Greek and German legend. In the myths they sing with beautiful voices, and seek to marry a human to gain a soul. However in some stories those who are unfaithful to an undine are cursed with death. This appears to have been the fate of the knight in the song. Miku may represent an Ondine.

A sequel, Hop! Step! Sokushi! Shiawase Dance Deathtrap was made. It has surpassed over 700,000 views on Niconico and 1,000,000 views on YouTube.

This song is featured in the albums IA/02 -COLOR- and VOCA NICO☆PARTY.

Lyrics
Japanese Lyrics= Written by an unknown artist, this version of the lyrics were used in the English version of Hatsune Miku -Project DIVA- F 2nd.
 * -|Approved English Lyrics =

Literature
A novel based on the song was published on September 20, 2014 by PHP Institute, Inc. Tory Hitsuji, the original lyricist, wrote and adapted the story for the novel.

Concerts
This song was featured in the SNOW MIKU LIVE! 2019 concert.