Solus Prime is the Maker and creator. Among her friends she is much loved both for her abilities to forge nearly any device they need and for her intelligence and positive supportive personality. If she has any flaw it is a fierce and angry temper that quickly flares up at any sign of injustice. She finds joy in creation, which is why she's particularly close friends to Nexus Prime, Micronus Prime and Onyx Prime who revel in similar pursuits. Her closest relationship however is to Megatronus. The two are bound by a close devoted romantic love unique among the Thirteen and spend much of their time online and off rejoicing in each other's presence. (The fact that both have quick fiery tempers surely won't cause issues down the road.)