Kagemori Mamoru is a dowdy boy whose hair is disheveled and who wears thick glasses, but he is actually the son of a ninja family. They have protected their neighbors, the Konnyaku family, secretly for 400 years. Mamoru has personally protected their daughter, Konnyaku Yuuna, since they were in kindergarten. When Yuuna is in trouble, Mamoru puts on ninja suit and turns into a competent ninja to help her.

Taito has been really sleepy lately, and keeps dreaming of a female vampire who says she has given him her "poison." Sometimes he even thinks he hears her voice when he's awake. But after surviving an accident that should have killed him, Taito's world changes drastically and he realizes that his dreams are more real than he thought.

In the distant future, on a dying Earth, human beings are synthetically produced and raised by artificial intelligence to hold specific roles in society. Among them lives Godo Shingo, a candid young cadet who demonstrates uncommon kindness toward living creatures and robots alike. Although Godo's superiors ridicule him for showing attachment to his nursemaid robot, Olga, he makes quite an impression as a sharpshooter and is entrusted with a special task—to capture the legendary immortal bird Phoenix, which has destroyed countless spaceships. However, his life changes dramatically after falling in love with Rena, the president's daughter who is also the fiancée of Rock Holmes—the Chief of the Science Department. After the pair fails to elope, they are separated, and Godo is sentenced to prison camp labor. Luckily for him, their companions Olga and Pincho—Rena's alien pet—escape unnoticed and come to his rescue. Hi no Tori 2772: Ai no CosmoZone follows an engaging adventure in outer space, exploring the idea of selfless love as an unparalleled power.

After losing his mother, 14-year-old Taro journeys to Tokyo to live with his grandfather. But he gets the biggest surprise when he discovers that his grandfather's home is a huge mansion with hundreds of beautiful maids ready to serve him. Making matters worse (at least for Taro, but not for our viewing) is that not only does he inherit the Hanaukyo mansion, he gets the services of all of the maids 24 hours a day, 7 days a week.