From philia scans:

Shinoyama Saya was suddenly summoned to another world along with her classmate. While one girl was hailed as the “chosen” Saintess, Saya was cast aside, dismissed as a worthless extra.

Abandoned by the Kingdom of Duunier, she endured days filled with pain and humiliation… until the Emperor’s younger brother from the mighty Wyell Empire extended his hand.

But here’s the twist. Saya isn’t just some background character. She’s an all-elemental magic user, an insanely overpowered Saintess in the making.

Now, she’s stepping into the spotlight as the Empire’s official Saintess, ready to take control of her destiny.

“To everyone who threw me away, get ready to regret ever underestimating me.”

Original