Doreimon is a female android originating from the 22nd century, summoned by Yujita to assist him in achieving his personal desires, primarily romantic or sexual goals. She wields advanced futuristic technology and specialized gadgets from her era to intervene directly in Yujita's life. One notable tool is the "SM Snake," a scenario-manipulating device deployed to help Yujita pursue his dream girl. In another instance, she calls upon the "Miracle Alien" to address Yujita's insecurities about his physical attributes following a negative encounter with a call girl. Her interventions consistently apply these technologies to alter situations or individuals according to Yujita's requests. Her sole documented purpose is fulfilling Yujita's wishes; no background, internal motivations, personality traits, origin details beyond her century and nature, or evolution in role or relationships beyond these specific scenarios are provided.