Android 17 , Lapis when he was an ordinary human, is the younger twin brother of Android 18 and Dr. Gero's seventeenth android creation. He is generally calm and thoughtful in his actions and words, He is not very talkative and often prefers to keep his thoughts to himself, after his past as a destructive Android Android 17 chose to protect the flora and fauna on an island, showing his concern for the environment. He acts kindly towards others, although he may seem aloof at first.