This moment wasn't Zoro conquering some curse, but instead Sandai Kitetsu willingly accepting Zoro as its master.
It was preceded immediately by Tashigi lamenting for the swords in the hands of evil owners.
Also, it's funny when she recommended the Sandai Kitetsu to Zoro, she didn't even consider the idea that it was cursed. You could chalk it up to her lack of knowledge, but I think it's curious that she did not think of it as dangerous in the slightest and thought it would be a perfect fit for him. This chapter seems to confirm that unworthy wielders attribute their lack of strength as a curse rather than trying to become one with the sword. Meanwhile, Tashigi believes one must be worthy of a blade and not the other way around.
It was preceded immediately by Tashigi lamenting for the swords in the hands of evil owners.
Also, it's funny when she recommended the Sandai Kitetsu to Zoro, she didn't even consider the idea that it was cursed. You could chalk it up to her lack of knowledge, but I think it's curious that she did not think of it as dangerous in the slightest and thought it would be a perfect fit for him. This chapter seems to confirm that unworthy wielders attribute their lack of strength as a curse rather than trying to become one with the sword. Meanwhile, Tashigi believes one must be worthy of a blade and not the other way around.