犬日和。 (Inu biyori., "Dog Weather") is a cheerful original pop song in the maimai rhythm game series, composed by SEGA sound team member RYOHEI KOHNO (興野亮平) with lyrics by Sou Youki (陽季想) and vocals by Ayaka Mori (森綾香). Released on January 17, 2013, for the maimai PLUS update, it stands as the second entry in the game's "animal series", a loose thematic trio that began with ネコ日和。 (Neko biyori.) and for which unused data for a third track, 鳥日和。, exists in the maimai GreeN build. The song adopts the perspective of an excited dog, painting a day-in-the-life vignette through bouncy, leapfrog rhythms, glittering synthesizer arrangements, and playful canine vocalizations ("ワンワンワン") woven into the production. KOHNO, who describes himself as a cat person, tailored the composition to a dog's earnest longing for its owner, and later added dog-bark sound effects and a space-shuttle whoosh after reviewing Sou Youki's completed lyrics. Ayaka Mori, a voice actress affiliated with studio A-CAT known for roles such as Tama in Binbougami ga!, delivers a bright, puppy-like performance that became a signature element of the track. 犬日和。 has enjoyed a long lifecycle across maimai editions. Its genre label shifted from ORIGINAL to maimai at the でらっくす PLUS update, and its jacket art was fully replaced with a new illustration for the DX era. The song's music video, originally a montage of cute dog photographs, was replaced by a static jacket image in maimai でらっくす. The chart difficulty levels have been revised upward several times across version updates, reflecting both the game's recalibration and the chart's enduring playability. Outside Japan, the song appears as "Dogs" in Asian English and Chinese releases (舞萌), with the artist credited as "RYOHEI KOHNO / Ayaka Mori."