Tiaral

What about us? If anything happens, it will be Nihon becoming great again. allegedly
But regarding the "grave" in any case:
- if it melts like Reimu's evil scheme, then it must be melted;
- if you find a girl kidnapped by an evil scoundrel and can free her, then you must free her;
- it could be either Kiryu or a completely random girl - a princess, a servant, someone's mother, there is no reason not to free her;
- if it's a priestess, then she could have turned a good king into an evil heretic, but in any case, this does not negate what he did, nor his weak character;
- if it's a super evil priestess, then several hundred years spent in the ice could still have somehow influenced her worldview for the better.
In short, 10/10 would liberate again.