Wendy Marvell (ウェンディ・マーベル, Wendi Māberu) is a young Dragon Slayer adopted and trained by the dragon Grandeeney (グランディーネ, Gurandīne, also "Grandine") to perform Sky Dragon Slayer Magic (天空の滅竜魔法, Tenkū no Metsuryū Mahō), which draws power from clean air to heal others' injuries and ailments,[ch. 135] and can temporarily relieve Dragon Slayers' motion sickness.[ch. 144] Together with Natsu, she is part of a group of Dragon Slayers sent 400 years from the past through Eclipse as children to combat Acnologia.[ch. 465] When the group is scattered upon arrival, Wendy travels the world with Mystogan until he leaves her at the Cait Shelter (化猫の宿, ケット・シェルター, Ketto Sherutā) guild, where she comes to be known as the "Sky Dragon" (天竜, Tenryū) and "Priestess of the Sky" (天空の巫女, Tenkū no Miko).[ch. 135] Seven years later, Wendy represents her guild in an alliance with Fairy Tail, Blue Pegasus, and Lamia Scale against the dark guild Oración Seis.[ch. 132] After the Seis are defeated, Wendy discovers her guild's true nature as an illusion created by their master, the elderly spirit Robaul (ローバウル, Rōbauru), to care for her; she is then left to join Fairy Tail after her old guild vanishes.[ch. 164] Wendy comes to admire Natsu as an older brother figure,[ch. 423] inspiring her to use her magic's combative functions, which include manipulating wind and augmenting her and her allies' abilities through enchantment.[ch. 376] Mashima designed Wendy to be a 12-year-old girl after one of his staff members commented that young girls "just don't appear" in the series, and noted the character's popularity among his associates.[vol. 16:185] His original concept for her was that of a "Water Dragon" based on the Japanese name for Wednesday (水曜日, Suiyōbi, lit. "Water Day"), which Mashima derived her name from.[vol. 27:184]