- Mana greeting the Bucket Hat Pirates. Spark D. Mana is the first Daughter of Spark D. Jon. She is also the Current Leader of the Demon Clan. The only one that knew of her exictence was her Uncle, Spark D. Bobby. All her life of being clan leader made her so depressed, she wanted to see the world. When she met the Bucket Hat Pirates, she finally got her chance. So, after the incedent with a certain traitor in the clan, she decided to pass on the title to her baby sister and joined as the assassin of the crew. Her Mark of the Demon is on her left forearm.