Voiced by: Masami Kikuchi (Japanese); Matt Caplan (English)
Keiichi Morisato (森里 螢一 Morisato Keiichi?) is a student of the Nekomi Institute of Technology and a member of the NIT Motor Club. One day Keiichi accidentally dials the Goddess Relief Office. After summoning Belldandy by accident, he ends up wishing for her to be by his side forever. Ever since, the two have been together. Keiichi's pure and innocent personality also puts him in the middle of an unusual love relationship. While he understands his love for Belldandy, he sometimes has a difficult time expressing his feelings.
He is a very skilled mechanic and an exceptional race driver. He is bestowed the directorship of the Motor Club, which he subsequently passes on to Sora Hasegawa. At his supposed graduation from college, he started working at the repair shop Whirlwind owned by the founder of the NIT Motor Club: Chihiro Fujimi. He picked up the one class and actually graduated many chapters later.
Since he met Belldandy, Keiichi has had many extraordinary experiences in his young life, including having met several other Goddesses and supernatural beings. He became the only person ever to have flown the Shinden, an experimental World War II Japanese airplane, and met Schrödinger's Whales—and saved them from extinction by teaching them songs.
Keiichi's personality is illustrated when he summons one of Lind's own Angels, Cool Mint. Lind gave him one of her angels because he is able to host the angel with the love of the three goddesses, which he received due to his innocent personality. Later on, Keiichi also temporarily and involuntarily hosts the demon-angel Blue Lance. Belldandy explains that the angel chose him to be host because he was the only person to refer to her as an "angel" and not a "former demon".
Voiced by: Kikuko Inoue (Japanese); Eileen Stevens (English)
Belldandy (ベルダンディー Berudandī?) is a goddess who ends up contractually bound to Keiichi Morisato after he accidentally dials the Goddess Relief Office. Ever since, Belldandy dwells with Keiichi at the Tariki Hongan Temple in the city of Nekomi, Chiba Prefecture near Tokyo. She can cancel the contract at any time, but she states Keiichi is a special person in her heart, and that her purpose is to make him happy. This also evidenced by what she says after the Lord of Terror's Arc is concluded in which she tells Keiichi "I'm here now because I love you."