Tayune is one of Kaoru Kawahira's contracted inukami. She has blonde or yellow hair reaching her ears and blue eyes, standing 164 cm tall with measurements of 88 cm (bust), 60 cm (waist), and 86 cm (hips) at 17 years old.

Within Kaoru's inukami pack, Tayune displays the most prideful and loud personality. She boasts considerable physical strength and combat skill, frequently wielding a short staff as her weapon. A defining trait is her quick temper, particularly triggered by Keita Kawahira's perverted actions towards her, consistently leading her to physically assault him. Despite this antagonism, multiple hints suggest Tayune harbors underlying romantic feelings for Keita, first apparent during their chapter 10 encounter. Her pack members often tease her about this attraction.

Tayune is notably the fastest among her fellow inukami to become enraged. Paradoxically, despite her formidable power and combat confidence, she experiences a pronounced fear of ghost stories and anything scary. Her loyalty surfaces during critical moments, declaring statements like "We just want to rescue our precious friend," while also making tactical assessments such as "I can't, there's too much difference between their levels!" when evaluating threats. Her role is defined by her position within Kaoru's pack and her interactions primarily with Keita and the other inukami.