ハイハハイニ (Hai wa Hai ni)

Background
Tennen's most popular song, it has entered the Hall of Fame. It is also featured in the game Hatsune Miku -Project DIVA- f, and the compilation album KAITO 10th Anniversary -Glorious Blue-.

Trivia

 * In Project DIVA F and Arcade Future tone, the PV has multiple references to SEGA's House of the Dead series.