A supermassive black hole which the entity named mother, after the thought of it having taken care of the system for so long.
It created life - but also took life. It is located at the very center of the solar system.
Destroyer of countless suns and celestial fragments; source and mother of the two remaining objects. Mother keeps everything balanced, but remains a big mystery to any curious eye.

This unnamed solar system was created and existed since the first physically stable stars were created. Once this system earned stable gravitation, it began to change and ended up forming a small baby star cluster. This baby star cluster consisted of ten stars and two rocky bodies in total. These early planets grew from time to time.
One day, the system started taking drastic changes and one of the young, massive stars collapsed in upon itself into a massive supernova. The result of this massive cosmic explosion was a black hole, which nowadays resides in the center of this solar system.

After the black hole was created, more stars started collapsing and bashing into each other, creating more black holes which - in the end - formed a much greater black hole. The young planets were not yet inhabitable, due to the high levels of radioactivity and lethal temperatures. It was only a matter of time.
Countless celestial stages later, the first life started roaming on planet Home. The black hole in the end forced the two planets to gravitate in an elliptical orbit around itself, keeping them in a harmonized circulation.

Nowadays, this solar system is an independently-travelling one, an orphan - travelling at the outermost border of the physical universe. It never had any gravitational encounters with anything bigger than itself before - generally speaking of other systems and objects in particular.