Battle of Death! Until Life Is Burned Out!!
After Kurenai has been extinguished, Kurei unleashed his powerful flame, the Sacred Flame Ho-Oh (Phoenix). Resshin recalled that the Sacred Flames caused Kurei's harsh fate. It is revealed that Resshin was a spirit of Recca and Kurei's real father, Oka. During the end of the fight, Kouran Mori appeared with a puppet Kurei. Recca and Kurei faced the puppet and Resshin finally joins them to destroy the puppet. At the end, Recca emerged victorious.
Aired 10/07/1998EP 42 - Battle of Death! Until Life Is Burned Out!!

Flame of Recca
Recca Hanabishi is a ninja, but is nearly killed in an accident. However, a girl named Yanagi heals him with her powers. Later, the two are tracked down by a woman who attacks them. She tells Recca to ignite his flame, but he is clueless. Just as she hurts Yanagi, Recca releases a powerful flame upon the woman. She is excited to see this. It turns out that Recca was a baby, from the Hokage Clan of the past, that was sent to the future in order to escape death. Now, Recca is the leader of the new Hokage Clan who must stop his half brother, Kurei, from kidnapping Yanagi.
(Source: AniDB)