Around twenty years prior to Murder at the Kogetsukan, Aaron had many relationships with women, including Harriet Violet and Ann. Ann later gave birth to Chris, who was never told of his parentage and raised within the Marble Trading Company. The night with Harriet led to the birth of Juliet Violet and Eva Violet unbeknownst to Aaron, who did not know who she was and only barely remembered Harriet's first name and face years later. Harriet married Adamska Violet shortly after, publicly raising the twins as his own daughters. Aaron married his first wife, who birthed Morris Goldie, and she at some point lost her life. He later married Dorthy Goldie who gave birth to Lorie Goldie.
Due to Ritsuka Fujimaru's consciousness being sent into that of Juliet Violet's friend, Ritsuka is unable to comprehend all of the sensory data in regards to humans through that connection. Ritsuka views them as Servants contracted to them, Aaron appearing as Fionn. The assigned Servants may have some connection in terms of personality, but it is possible for key traits of the person to be confused due to the process.