Heiter

Heiter was the alcohol-loving priest of the Hero Party. After the Hero Party was dissolved, he returned to the Holy City and eventually became a bishop.In his last remaining years, he adopted the orphan Fern and raised her. When Frieren came to visit him 20 years after Himmel's death, he asked Frieren to adopt Fern and train her as her apprentice.

Personality
Heiter is known as a drunkard, which is why Frieren calls him "Corrupt Priest". He eventually stops, as he realizes that his body can't take it anymore.Heiter felt his approaching death a long time ago.So, he asks Frieren to help him translate a book that might have the secret to let him live forever or be resurrected, though he is fine with just having more time on earth.

Appearance
Heiter is a bespectacled Priest with green hair.

*Frieren
Frieren calls him "Corrupt Priest". They both are good friends and they along with other heros defeated the Demon King. Soon, after defeating the Demon King Frieren left the kingdom in her pursuit of magic. Five decades later. She finds Himmel to have grown very old.Meanwhile, Frieren herself does not look a day older. Together, they meet the other hero’s party and goes to see the Era Meteors in a location a week’s walk from the capital.

Later, he asks Frieren to help him translate a book that might have the secret to let him live forever or be resurrected, though he is fine with just having more time on earth. However, it's later revealed this was just a ploy to keep her around and have her train Fern until she could protect herself when he was gone, and subsequently, have Frieren take her under her wing when he's dead.Frieren refused to take Fern with her because she'd be a burden, so Heiter asks her to at least train Fern while she is translating a book.Frieren notes that it seemed like he was Not Afraid to Die, but he admits that was a mask he wore beneath his smiling appearance to show off. As seen in his final years where she lived with him, the two really do deeply care about each other.

*Fern
In his last remaining years, he adopted the orphan Fern and raised her. When Frieren came to visit him 20 years after Himmel's death, he asked Frieren to adopt Fern and train her as her apprentice.Heiter was a good father figure to Fern. She became strong so he would not have to worry about her anymore and could pass away in peace, and to this day she still misses him. In his final days, he wished for Fern to be strong enough so that he could pass in peace without regret.