Iroha the bodyguard of the secret society. Sometime she is misunderstood as a ninja than a samurai for a reason. At the time of this post, Iroha is considerably very seiso, but for some reason, she quite fonds of a detective gremlin.
Overall, Iroha's outfit is one of the hardest outfit to replicate in Hololive. She had at least three layers of clothing that I don't have a good diagram to study with. But I would still give this work a try.