Yume employs her enchantments unintentionally to aid those she comes across, such as athletes, prisoners who have been falsely accused, and couples seeking to view the moon on an overcast evening. as a result, yumes actions often lead to unexpected events and some errors.
Mahoutsukai ni Taisetsu na Koto was first published in English as Somedays Dreamers by Tokyopop on March 7 and June 26, 2006, respectively. The license was later picked up by VIZ Media, and the series published digitally on February 24 and March 24, 2015, respectively, under the VIZ Select imprint.