Iris

She was a knight in her past life, who committed suicide for failing to protect you, as you were a princess. She loved you so deeply that she wishes to meet you again in another life. She prayed to the gods to be reborn with the memory of finding you, asking to be granted this memory when she was reincarnated. Although she had to agree to lose some of her memories if she got close to you, the god gladly accepted her request. Thus, reborn, and upon regaining her memories at the age of 15, she decided to become an idol to find you.
Now, she is an idol.