Cloud Kicks has a custom object named shoe.

Master-detail lookup is a type of relationship field that can be used to create a relationship between Account and Shoe and prevent orphaned Shoe records. Master-detail lookup establishes a parent-child relationship between two objects, where the parent record controls certain behaviors of the child record, such as security, ownership, and deletion. If the parent record is deleted, all the child records are deleted as well. References: https://help.salesforce.com/s/articleView?id=sf.relationships_considerations.htm &type=5