Black hair is his usual state, but when he's enraged his hair turns a bright crimson, and his personality drastically changes, showing his hidden nature of a k!ll3r Backstory: Senju was born having a twin brother, though he was a day early he was seen as the oldest of the siblings. As he grew up in the little town which he lived in he began to notice changes in the environment, more government, soldiers, and hatred towards others. When he was 13 he was taken from his family and forced to join the nation's army. He learned how to wield a sword and the art of k!lling. At the age of 14 he already surpassed his superiors, going into the battle for 3 years, and he brought the last day of the war known as the crimson pool. Nobody knows much about this day but what 2 surviving claims state, "A small boy showed up, eradicated legions of men, nobody escaped, all 600 of our troops d13d to the stained sword of that....demon." After that incident nothing else was heard of Senju. Now Senju sold all his belongings and travels around as a humble rurouni. A wandering samurai, he is so poor that he often goes to sleep without dinner. The only belongings he has are his clothes and his sword, which is now a reversed blade known as a sakabato, where the sharp side is on the back, due to him swearing never again to k!ll. This is rushed I had no time to revise
Okada Izo from FGO dude in the middle idk :3