Nebula Sparkle is the older daughter of Twilight Sparkle and was created by a spell of fusion in which Twilight accidentally mixed his DNA with Tempest Shadow, after a few years when Starry still a little pony she sees her big sister go to the Crystal Empire. The two sisters return see theyself only after a few years.
The two sisters return to find only after a few years and after all this time they have a lot to solve.
········At Twilight’s Castle········
Nebula- Starry that good to see you!
Nebula ran to hug it but Starry the interrupted and did not allow her to approach.
Nebulate-what it means that?
Starry-I’m busy I will not hug you.
Nebula-how so? We did not see us for years I missed you little sister.
The princess twilight came in the hallway and surprised him with what Starry was doing.
Starry - Sister? You’re not my sister and you will never be!
Nebula- What …
Starry gave the quotas and left, rose to his room and locked, while his sister Nebula came out to cry in the library.