Megumi Morisato is the younger sister of Keiichi Morisato. She arrived in Nekomi shortly after Belldandy and quickly enlisted Keiichi's aid in finding an apartment. Since then, Megumi has been a regular guest at the Morisato Residence, enjoying Belldandy's cooking, and giving Keiichi sisterly advice.

She has short brown hair and bright brown eyes. She is a gentle character and her personality is easy to like. She is talented with motorcycles when it comes to fixing them and riding them, she even develops the reputation of being the queen of the road. Megumi is always there for her family to lend a helping friend, or just to help out her brother with his love life.

Megumi is not a main character, she is a minor character who serves an important role in the manga by opening up other characters when sharing her optimistic views.