The Unconquered Sun
Solaris Invictus is an 18 year old Hero, born in the Kingdom of Suberbia, he currently spends his time trying to be a symbol of hope and justice for the world.
Solaris is one of the rare few in the world to possess an "OGene", therefore making him a Joker. Furthermore, Solaris possesses a powerful fire-based quirk simply called "Sol" and is the successor to the previous wielder of the powerful quirk "One for All". Additionally, Solaris is a survivor of the Reiss Orphanage Massacre.
When acting as a Hero, Solaris makes it a point to always be positive and confident. If the light of the world were to dim, all would lose their way. As the Unconquered Sun, it is the duty of Solaris to use his power to protect and guide all who reside under the light of the sun. Solaris believes no being in inherently evil, and that all have the potential to walk within the light. But Solaris is not naive, and realises that some will inevitably lose their way and be trapped in darkness. For these people Solaris does harbor sympathy, but he will not show pity. Those who embrace darkness are destined to be eradicated by the Light of the Unconquered Sun.
When in private, Solaris is not majorly different but does have a few distinct changes in personality. In private he actually shows his flaws, the stress his responsibility puts on him is particularly prominent among those close to him. Equally so is his unwavering dedication to the preservation of justice. Solaris' sense of Justice is very much real, and does not go away just because he isn't in front of an audience.