Funbari No Uta

Funbari no Uta is a series of short stories written by Hiroyuki Takei relating to his manga series Shaman King; and a furyoku-inducing battle anthem-turned-jingle-turned-Japanese ballad created by the Shaman King character, Faust VIII.
Funbari no Uta is set seven years later (2007) after the Shaman Tournament, and revolves around Hana Asakura, the son of Yoh and Anna. Hana and Ryunosuke Umemiya are searching for the members of Team Ren and Lyserg for the grand opening of Funbari no Onsen, which is run by Tamao in the story.