Camellia is a vampire who escaped from a certain research facility. Utaka, a human office worker, picks up Camellia, who has been injured and collapsed. Because he was held captive in the facility, Camellia could not trust humans, He gradually opens up to Utaka, who suggests they live together. But does vampire saliva have aphrodisiac properties?
Tsukigase Kazuki, harboring a secret, enrolled at Saigishima High School on a remote island seeking anonymity. Saigishima was home to a place called "The Cove of Vanishing"—where, at summer's beginning, Kazuki discovered an unconscious girl. At the hospital, the girl awoke as Nanao, age 16, with no memories. But what did her whispered year—"1974"—mean?
"You're being too tsundere! You're being too tsundere, Liselotte! Is this really going too far!?" "You probably meant to say, 'Let me in too,' but your overly euphemistic words and usual arrogant behavior have completely misunderstood..." One day in the courtyard, a divine message suddenly fell upon Crown Prince Siegward. In fact, it was a live commentary and explanation by two Japanese high school students! Relying on the "voice of God," everyone's struggle across both the other world and the present begins to break the flags of destruction for the brave and cute tsundere villainess Liselotte!
Yuriko is taken in by the Yamakawa family—consisting of the parents, the eldest son Jun, and the eldest daughter Rumi—after a series of tragic misfortunes. Yuriko’s father vanished while trying to raise money to pay off a debt, and her mother tragically died in a car accident caused by sheer exhaustion and distress. Left entirely alone, Yuriko is rescued from an orphanage by the Yamakawa family, because her late mother and Rumi's mother happened to be high school classmates. Yuriko is assigned to share a room with Rumi, but nighttime brings a chilling visitor. A massive snake, measuring well over a meter long, slithers up the rain gutter and crawls across the roof toward their bedroom window...