Image text translation (I hope I got it right):

Top left text: Born with snake-like features (vertical pupils, bat wings).Feeling that she is ugly, she rarely reveals her true appearance.

Upper left text: The second daughter of the royal family, yet she did not inherit the power of sunlight. Her existence remained hidden for a long time. After her sister was banished and the gods gradually departed, she took on the responsibility of guarding the royal city of Canterlot alone. Known as the “Shadow Sun,” she leads the Darkmoon Knights.

Upper right text: The eldest daughter of the God-King, and the rightful heir to the divine race. Wielding the power of sunlight—lightning capable of piercing dragon scales—she distinguished herself on the battlefield, earning the title of Dragon-Slaying Goddess. However, she ultimately chose to ally with her former enemies—the dragons. This act was considered foolish and a grave betrayal, resulting in her exile, the destruction of all records related to her, and even the erasure of her name. Nevertheless, she continued to watch over warriors as the Goddess of War.

Small left text: As a child, almost all the love and care she received came from her older sister, whom she deeply ired.

Center left text: Although born with the ability to use moon magic, she always yearned to become a “Sun” just like her sister. It wasn’t until she accepted her true identity as the “Dark Moon”—submerging and protecting Canterlot within the moonlight—that she finally earned her Cutie Mark.

Small right text: (She also became a very good older sister.)

Bottom left text: She accepted a scepter gifted to her by Chrysalis, the strongest member of the Dark Moon Knights. Unbeknownst to her, it was laced with poison, causing her constitution to gradually grow frail and weak.Afterward, the Pony of Shadows took advantage of her weakness as planned, invading the royal capital.

Bottom right text: (Far away in another land, completely unaware of what is happening back in the royal capital.)

Very bottom left text: (After being consumed by the Pony of Shadows, her body fused with it as one.)