Friston-3 is a fictional robot character in Arknights, associated with the Rhine Lab storyline. It is an autonomous mechanical unit rather than a human character, and it appears as part of the setting’s advanced technology and research themes. Friston-3 serves as a support-type presence in the narrative, highlighting the organization’s scientific capabilities and the broader implications of artificial intelligence and machine-made life in Terra. Its role helps reinforce Arknights’ blend of dystopian conflict, science fiction, and corporate intrigue.