Keep or keep rerolling? Might keep on rerolling for 2 kamihime accounts. I have to admit, I have been lucky for getting Sol 3 times.
That's honestly really good in my opinion. You got Sol, a Light SSR along with Thunderbird, a SSR summon that raises the Attack of Thunder and Light allies as a Main Summon. SSR Hime + SSR Eidolon that matches your SSR Hime is always a great reroll in my book.