Azusa, who was reincarnated as an immortal witch in another world through the goddess's intervention, had a slow life in mind, reflecting on her past life where she died from overwork. She spent 300 years slaying slimes as her daily routine to supplement her living expenses... and before she knew it, she had become the world’s strongest at level MAX! Her reputation as the strongest spreads, and soon, troubled beings such as a dragon girl, a slime spirit, an elf, and even a ghost start showing up at her once-quiet house in the highlands. Unable to ignore their worries and situations, Azusa rushes to solve their problems, welcoming them into her family and starting a new, slow life together. However, this new life is a bit too lively to be considered "slow"! From visiting the hometown of a red dragon to soaking in hot springs, attending a ceremony in the demon realm, and even exploring the giant dungeon known as the World Tree—another fun day begins today!