Made in Abyss 3 (Bamboo comics)

[Machine Translation] The Abyss, an unfathomable cavern that holds a terrible curse but never ceases to fascinate people. In order to meet her mother, Liza, a young girl named Riko and her mechanical doll, Reg, challenge this great hole with their lives. Riko and Reg are groping their way through the cave. At the Seeker Camp, a surveillance base in the second layer of the Deep World, they receive strict guidance from the legendary "Unmoving Ozen," a white flute player, and gradually deepen their understanding of the hole. And finally, the stage is set from the third to the fourth layer of the Deep Realm.... The deeper they go, the more they are attacked by monsters that become so ferocious that they seem out of this world, and Rico and Reg find themselves in a great crisis in their adventure. In the midst of such a desperate situation, what appears before them? This is the third volume of the great adventure adventure with a mixture of friendship and sadness!

恐るべき呪いを秘めつつも、人々を魅了して止まない底知れぬ大穴『アビス』。母・ライザに会うべく少女・リコと機械人形・レグは、この大穴に人生をかけて挑んでいく。手探りながらも順調に探窟も進めていくリコとレグ。深界ニ層の監視基地〈シーカー・キャンプ〉で伝説の白笛『動かざるオーゼン』から厳しい指導を受けるなどしつつ、二人は徐々に穴に対する理解を深めていく――。そして舞台はついに深界三層から深界四層に・・・。深くなるにつれ、この世の物とは思えぬほど凶暴になっていくモンスターに襲われて、冒険の大ピンチに陥ったリコとレグ。そんな絶体絶命の状況の中、二人の前に現れたのは…? 友情と悲哀が入り混じる大冒険活劇、第3巻!!