How to obtain weapons in Pillars of Eternity 2 Endless Road

Pillars of Eternity 2: How to obtain the weapon of Endless Road. The fragments of the two swords are in the captain's room. I inherited the 1st generation save file. I don't know if you can get it. Even if the Sword of Endless Road is repaired, it will only be + according to the algorithm of 1st generation. 2 unique levels. It seems that the second generation can only be processed into unique levels. The two can be combined into one and can be repaired into a giant sword with range attack. The attributes are very good. If you want to repair this sword, you have to go to the blacksmith shop in Pei Ruiqi's Hope to repair it.