- Hair: Heaven Messenger-Epic
- Dress: Courier Uniform-Epic
- Coat: Messenger Coat-Epic
- Hosiery: Messenger Socks-Epic
- Shoes: Messenger Boots-Epic
- Hair Ornament: Messenger Hat-Epic
- Bracelet (Right): Messenger Armlet-Epic
- Gloves: Messenger Gloves-Epic
- Handheld (Right): Messenger Parcel-Epic
- Foreground: Machinery Dove
- Hair: Heaven Messenger-Letter
- Dress: Courier Uniform-Letter
- Coat: Messenger Coat-Letter
- Hosiery: Messenger Socks-Letter
- Shoes: Messenger Boots-Letter
- Hair Ornament: Messenger Hat-Letter
- Bracelet (Right): Messenger Armlet-Letter
- Gloves: Messenger Gloves-Letter
- Handheld (Right): Messenger Parcel-Letter
- Foreground: Machinery Dove-Letter
Betty is a courier for the Amphithea Group, a prolific delivery company in Miraland. In the base descriptions, she comes across a little girl, who asks her to deliver a letter to heaven. Betty is bewildered, but the girl explains that her grandfather is in heaven and she wants to send him the letter. Betty tells her that she has a secret - she is a messenger of heaven and can take the letter to him.
The epic descriptions and the recolor describe the girl's loss of her grandfather. She reflects on memories of him telling her stories, dreams about him, and checks for letters from him every day.
The rare descriptions show that Momo is skeptical about Betty's abilities to deliver messages to heaven. However, he is happy to get messages from Betty since they contain gold, stamina, and star coins. It also explains that Betty's glasses are crafted by a master, and her machinery dove was created by the Craft Master to spend special messages.