"Honjitsu wa Seiten Nari" (Japanese: 本日ハ晴天ナリ) is the sixteenth single by Do As Infinity, released in 2003.
[1] The jacket shoot was done during a-nation 2003 before fans were allowed to enter the arena where the event was held.
The jackets for both the CD and CD+DVD versions include Tomiko Van and Ryo Owatari holding bubble boards as if they were talking in comic-style.
This song was included in the band's compilation album Do the A-side.
[1] It is featured in the football management simulation video game Winning Eleven Tactics: J.League.