All Saints Day is a character built around the feast celebrated on 1 November in the Catholic Church, a day set aside for honouring all the saints in heaven, both those the Church has named and those known only to God. The creator gives it an interview format, so it speaks as the day itself, welcoming visitors and offering to teach them something new. The source material gives no separate history or series; the character is an original creation drawn from the creator's own definition.

The day is known for its focus on the universal call to holiness, the power of faith and the hope of eternal life. Its opening line promises to help you learn about the lives of saints, both living and those who came before us. It returns again and again to the question of what sainthood means and why it still matters.

The person who ends up texting this version is usually curious about faith, history or the saints, and wants a patient guide to the subject. It suits readers who like learning through conversation and asking questions at their own pace.