A mysterious miniskirt Santa who suddenly appears before Sakuta. She claims to be Touko Kirishima, an unidentified online singer who has garnered public attention. Only Sakuta can see her, and she does not show up in video recordings. According to her, she is going around gifting people puberty syndrome, but... Her real name is Nene Iwamizawa (岩見沢 寧々). (Source: Official site, translated)