u/GluKoto

I quit WuWa all the way in 1.0 cus the quest seemed boring for me however after seeing many changes and people having overall more positive opinions i decided to restart it. As such I got Hiyuki and her Weapon.

I want to know which of these i can use with hiyuki and what should i save for.
I have the entirity of main quest remaining so even farming for hiyuki might be tough but for the time being what would be good investments to ensure better returns.

Thanks for the help