Rumors tell about an ageless girl who only comes out at night, living in a mansion in the middle of the forest. Some say that she is a living doll with a soul. Upon hearing these rumors, Akari Amano seeks out this girl, only to find herself lost as she treks through the woods amidst the darkness. A vampire named Sophie Twilight saves her, turning out to be the rumored girl. However, unlike the vampires told in myths, Sophie does not attack humans and instead orders her blood online. Akari instantly becomes charmed with her doll-like appearance and proceeds to abruptly move in with her, thus starting their life together.

The series began in the middle of a game of hide and seek, as a young boy named Justin Casey (Gen) finishes counting and begins searching for his friends Angela (usually called Angie) and Corkey Roberts (Kanna and Tsukubo Natsuyama). As he searched for the brother and sister in the wooded area, a storm occurred all of a sudden. Justin managed to sneak up on the two before the rain started pouring, forcing them to run for cover. They would eventually find a house in the wooded area, previously unseen according to Justin. At first glance it appeared nobody was home after entering the house, until they discovered a robot named Solar Ion Robot (Kadenchin), or the acronym SIR. They would soon meet the owner of the house, Professor Humphrey Bumble (Dr. Tokio Taimu), who introduced the children to his greatest creation, a time machine. Professor Bumble's attempt at recreating Benjamin Franklin's famous lightning experiment with the use of a kite flying outside the house to get the machine working only led up to SIR's temporary change in personality before sending the entire house on course for the past. The children never realized how long the journey back home would be due to Professor Bumble's misguidance and errors in time travel, but in the meantime they witnessed and participated (with little or no consequences) in numerous events in the Bible's New Testament, from John the Baptist's birth to the rise of the Apostle Paul. (Source: Wikipedia)

In the wake of their first home burning down, Nasa and Tsukasa Yuzaki are seeking temporary shelter at the Arisugawas' bathhouse. Though they have only been married for a short time, their relationship has only become sweeter by the day. Nasa is determined to spend as much time with his wife as possible, basking in the happiness of their marriage. The newlyweds find new ways to explore their relationship. From adopting a cat, going to an amusement park, and even watching an impromptu romantic comedy featuring Nasa's former teacher, every day is a new experience. But while Tsukasa continues to meet the people in Nasa's life, Nasa has yet to meet more of Tsukasa's family. Though they appear to be the picture-perfect couple to everyone around them, Nasa begins to wonder if he will ever learn more about his wife's mysterious past.

Comedy parodying famous samurai generals and historical events.