เรื่องราวของเนี้ยวตันแมวผู้ต้องการให้ตนได้เปลี่ยนเป็น 1 ใน 12 ราศีดาวฤกษ์ เธอได้เจอกับเด็กวัยรุ่น อะมาโตะ ทาเครุ คนที่จะรอช่วยเป็นอย่างยิ่งให้เนี้ยวตันได้แปลงเป็น 1 ใน 12 ราศีดาว
When Takeru Amato affected into his new living accommodations in Akihabara, he was warned that there was one downside with it. He wasn’t warned, however, that the matter was a hole within the floor that results in the realm of the zodiac gods. He additionally wasn’t told regarding Nyaa-tan, the eccentric, immature, prospective zodiac-sign cat. Nyaa-tan would really like nothing quite to hitch the remainder of the women, otherwise referred to as Eto-shin, within the Chineze zodiac, however she’s planning to have to be compelled to fight to figure her method in. luckily, establishing a relationship with Takeru will facilitate her thereupon. In Etotama the members of the zodiac don’t simply represent people’s births; they draw their power from positive human emotions within the sort of energy referred to as Sol/Lull. With this power, the Eto-musume, or potential Eto-shin, will amendment from their largely android appearances into smaller “pretty modes” that may battle with one another within the Eto world. Nyaa-tan must get Takeru to heat up to him quick, and not simply because they’re inhabitation. The ETM12 choice competition to work out ensuing member of the zodiac is returning shortly. With Takeru’s smart graces, Nyaa-tan simply may well be able to rebuff the opposite Eto-musume and therefore the twelve Eto-shin themselves, and at last take her place within the zodiac.