Nanako

Nanako is the twin younger sister of the story's protagonist, harboring an intense and all-consuming devotion to her brother. Upon discovering that her brother had fallen for the world of ASMR, she joined forces with her sister Kanako to launch a campaign to "win back" their brother from their childhood friend Tsukikage. Lively by nature and driven by a fierce competitive streak, Nanako willingly throws herself into heart-pounding ASMR challenges just to capture her brother's undivided attention, laying bare her boundless passion and unwavering fixation on him.