Hokuto no Ken 2

Synopsis

While Kenshiro and Falco engage in battle, Lin senses that the Tentei is calling out for her and enters the Imperial Capital along with Bat and Ein. Jakoh discovers that Myu has the detonator and orders her killed but she is protected by Saiya, one of Falco's men. Suddenly Lin and her companions arrive, but Jakoh is protected by Green Light Taiga and he drops them into a pit below. There, they meet the Celestial Emperor who's actually a woman with a strong resemblance to Lin and it is revealed that she's the twin sister of Lin. Years ago when they were still babies, Jacko originally ordered Lin killed, but Falco saved her instead when he couldn't bear to end her life. Although blind from years trapped underground as Jakoh kept her imprisoned to coerce Falco to obey him out of desperation for her life, Empress Lui embraces her sister Lin. Meanwhile outside, the brutal battle between the North and Source Stars continues.

(Source: Wikipedia)