Age: 14

Occupation: Maiden

Alternate Name: Sixth

Likes: Her family

Height: 157 cm

Weight: 50 kg

Tsubaki Kasugano is a maiden and figurehead of the Omekata religion. Her "Thousand League Eyes" diary is unlike the other diaries, as it is a scroll, rather than a cell phone. As its name would suggest, it is able to report the future of all her followers. Unlike Yukiteru's diary, it is not limited to just her surroundings, but also sees far events, such as seeing the events Yuki had accomplished a great distance away from where she resides. Her diary can also record near events; the short-term future that will occur after only a few seconds away from the present. This provides Tsubaki with massive amounts of information to work with. However, it can pose as a hindrance in times where a situation changes constantly or when she needs to react quickly.

She is named after Proserpina (Persephone) — roman goddess of Underworld.　The characters of her name mean "Spring" (春), "Day" (日), "Field" (野), and "Camellia"(椿), respectively.