Animaru Ya and Studio Deen; episodes 5 and 11 at Studio Tama; episode 7 at Satelight; and episode 8 at A.C.G.T. Under17 composed the opening theme song in the same style used for the game; Funta wrote the ending theme song. Tokyo Broadcasting System's satellite station BS-i and the Bandai Channel aired the anime from July 18, 2003, through October 3, 2003. The narrative is episodic and usually focuses on one character at a time. Each of the first four episodes focuses on one of the four main characters, depicting social interaction and growth. The anime's use of time travel allows focus on the older versions or children of previously-featured characters, and contrasts their experiences with the protagonists' agelessness. Reviewers have experienced difficulty categorizing the Popotan anime, though it does feature an overall comedic tone. The characters are very lighthearted and eager to help new acquaintances. Nudity appears in many episodes, though no sexually explicit scenes occur. Geneon rated the series for ages 16+; Section23 Films gave its re-release a TV-MA rating. Shaft released a teaser DVD entitled on June 27, 2003, featuring character designs by Haruka Sakurai. The DVD also contained video interviews with the anime's Japanese voice actresses, a CD of music from radio the drama, 's theme ,metallic paint illustrations, and a plushie of Unagi. Bandai Visual released the anime on six Japanese DVDs containing two episodes each. Bandai staggered the discs' release over the period September 26, 2003 and February 25, 2004. Each disc came with a promotional figurine of one of the girls; Bandai provided DVDs without the figurines at lower costs. A misprint on the volume 3 DVD jacket occurred during production, numbering the episodes incorrectly. Bandai Visual offered free exchanges of the jackets to purchasers. Geneon USA licensed the DVDs for North American release, producing three DVDs containing four episodes each between December 7, 2004 and April 26, 2005. Geneon USA began selling a box set on August 14, 2007, shortly before the firm's demise. Sentai Filmworks licensed the anime for distribution in late 2009, having made an announcement July 28. Section23 Films re-released the complete series through a 2-disc set on October 27, 2009. Setting and plot An adaptation of the visual novel, the anime takes place in an alternate reality. The main female characters and their relations are unchanged, but the storyline is unrelated to the game's. The plot follows the