Marulk

Marulk is a young boy with short blue hair and a rounded face. His feminine traits and maid attire leads people to mistakenly identify him as a girl, but he's actually a male. Made in Abyss Anime: Made in Abyss Episode 06 While the details are not clear, it is implied Ozen was the one that decided for him to dress like a maid.Made in Abyss Manga: Made in Abyss Chapter 013, Pages 12-13. He is a rather shy, but polite, individual who misses having the chance to talk with people of the same age because he manages the Seeker Camp. Though he does fear Ozen at times, he knows her well and trusts her. He's very reluctant to talk about his clothing. When Jiruo mentioned it, Marulk became very nervous, despite greeting Jiruo as an old friend only moments before. At some point in his past, Marulk was involved in a crash of an airship in the Abyss in which the crew, including his father, lost their life and was later found by Ozen.Made in Abyss: Marulk's Daily Life Episode 4, Following this event, he chose to stay in The Abyss and became Ozen's disciple. Marulk has been trained in the basics of delving and displays enough skill and expertise to prove to be a Blue Whistle Delver, despite his young age. As a direct apprentice of a White Whistle, he is considerably more skilled at delving than kids his age and he is capable of surviving on his own in the less hazardous sections of the 2nd Layer for at least a couple of days. Made in Abyss Manga: Made in Abyss Chapter 013, Page 14. Marulk is in charge of the Seeker Camp Telescope and is often keeping watch of the surroundings so that a gondola can be lowered when a Delver shows up.