(This is a Taimanin series fanfiction with a focus on story, plot, characters, lore and world-building. It is an AU melting-pot of timelines/universes, with familiar yet new storylines and arcs, intended for both long-term fans and franchise newcomers. Additional information can be read in the Pre-Story Author's Notes chapter.) Taimanin, ancient ninjas of human and eudaen blood whom fight evil threats, protecting the peace of Japan while living in peaceful hiding away from the ordinary public, their people, in the modern years, now treated as local fictional characters, stories, marketing trickery to dissuade people's sightings, particularly those outside the Japanese populous, from exposing the unordinary magical fantastical battles of ninja and eudaen kind, unfortunately, the era of Taimanin strength is in decline, evil threats in human and otherworldly nature seek to corrupt and profit off of their heinous ways. While many choose to set their sights on enjoying their peaceful slice of life lives, those who have the strength and desire to see the world change for the better, to make a safer, brighter, peaceful future for Japan and the world, continue to fight, no matter how scary, how stressful, how dangerous, whether they're a married mother who's lost nearly everything, Asagi Igawa or a team of teenagers, lead by a young man who's lived with a cruel unfeeling monster for fourteen years of his life, Kotaro Fuuma. Thankfully, these two struggling warriors aren't alone, the former with her supporting adoptive son, Kosuke "Sawaki" Igawa and the latter, aided by his bestest childhood friends, male, Shikanosuke Uehara and female, Hebiko Aishu! Little do these good-natured people know, someone personally seeks to bring harm to their home, their people, their beloved... Hero of Gosha... When the time comes, will these secret warriors fair well against this spiteful threat? Or cower to their wounded wrath??