Based on the historical figure of Nobutora, the father of the famous Warring States period general Takeda Shingen. Takeda Shingen has proven himself in battle but there’s an even more capable person in his family, his father Nobutora (lit. Samurai Tiger). The son exiles the father and so the old patriarch goes to Suruga to serve the Ashikaga shogun in Kyoto. Decades later, Nobutora, now 80 years old, learns that Shingen is in trouble and the old man returns home to keep the Takeda family alive as a new leader seeks to usurp leadership of the Takeda’s and starts a fight with the great warlord, Oda Nobunaga.
Dead bodies with eyeballs ruptured are continuously found. Their direct causes of death are heart attacks and they acted like they were possessed right before their deaths. Mizuki is a university student. Her friend dies in front of her. Meanwhile, Haruo’s younger brother dies. Mizuki and Haruo begin to investigate together. They learn that Eiko holds a key to the mystery. Soon, Eiko's eyeballs rupture and she dies by a heart attack. Before she dies, she mentions the word "Shirai-san.”
Mitsuki Tanimura (谷村 美月 Tanimura Mitsuki) is a Japanese actress. Tanimura was born in Sakai, Osaka. She starred in Akihiko Shiota's Canary and Norio Tsuruta's Orochi. She has also appeared in films such as Takashi Miike's God's Puzzle, Junji Sakamoto's Strangers in the City, and Kazuyoshi Kumakiri's Sketches of Kaitan City. Description above from the Wikipedia article Mitsuki Tanimura, licensed under CC-BY-SA, full list of contributors on Wikipedia.