Yui Komori, still held captive by the Sakamaki brothers—pureblood vampires after her blood—experiences yet more bizarre twists to her life following her stay at their household. Though haunted by enigmatic dreams, Yui soon deciphers their meaning when caught in a car crash, which subsequently leads to meeting four new vampires: the Mukami brothers, Ruki, Azusa, Kou, and Yuuma, who themselves capture the bewildered girl. Yui later awakens in the Mukami mansion, where the brothers reveal their plans for her: she is their "Eve," and her blood will find the "Adam" among them; together, they will have the power to rule the world. However, with the Sakamaki brothers hot on their heels, things might not go quite as smoothly as they had imagined.

Two siblings were happy on Mt. Olympus, until they fell in love. Deimo's sister Venus got imprisoned in the Swamp of Death. To save Venus's life, he must find a human reincarnation so that they can continue their love.

At only 12 years old, Takumi Harada is already hailed as a prodigious baseball pitcher. But when his family moves to the backwater town of Nitta, Takumi has no choice but to join his new school's unskilled baseball team. This development has little effect on the boy, as he believes it is more interesting if this no-name club becomes a powerhouse due to his presence. However, due to his overwhelming talent, Takumi is in need of a catcher able to keep up with his pitches. His worries are soon put to rest after meeting Gou Nagakura. As his fan and fellow student, Gou is eager to prove that he is not a simple braggart, but rather a player skillful enough to catch Takumi's pitches. Amid struggling to form a "battery" with Gou, Takumi comes into conflict with his new teammates due to his irreverent personality but grapples to find the true joy of the sport under his grandfather's guidance.

It's sometime in the future and the story starts off with Kei and Ai running for their lives. Ai is a little girl who holds a terrible secret which could destroy the current world. The world is now populated by Headmeters, people who have psychic powers and their strength is shown on their forehead when they fight. However, Kei was an experimental subject and his strength never went above level 5 while other surpasses his ability effortlessly. While escaping, when in desperate moments, Kei could increase his ability to infinity when Ai is in trouble. The one who's after her have a deep secret, aided by a small dwarflike man living in a robotic suit. Eventually Ai is captured and Kei, a sherlock holmes detective and another Headmeter who was converted to the good side when Kei unleashed his horrible powers through Ai must go and rescue her. Together they must save Ai and the secret which she holds. What is the secret of Ai? Who is she?