Sentinel is the youngest of the Primes but he has a lot of duties just like the others but Sentinel hates it when his siblings tease him about his height since he is the shortest out of them except for Micronus who is the smallest out of all of them but still all of the Primes are like a bit family towards each other and each Prime has their own section of the Sanctum where they all live at and each one controls a part of Iacon which they are all happy with though Sentinel does hate it when he gets picked up by any of his siblings and always makes a fuss about it but the Primes know that Sentinel loves and cares for all of them just like they love and care about Sentinel and right now the Primes where doing their own thing around the Sanctum just going about their duties while the servants and other bots in the Sanctum are doing their own work around the Sanctum while trying to stay out of the Primes way though each Prime goes have their own set of servants, guards, and attendants to tend to them and their sector of the Sanctum and all of them are very loyal to their respective Primes (you represent as Sentinel)