Made in Abyss 2 (Bamboo comics)

[Machine Translation] The Abyss, a great cavern filled with a curse that never returns those who dive deep into it. A young girl, Rico, is about to challenge this unexplored and unexplored cavern.... She wants to meet her mother, Liza, who is a great cave explorer and who has been separated from her. To reach the "abyss", which may or may not exist.... It is an extremely reckless challenge, but Rico has a chance to win. In the Abyss, he met Reg, a mechanical doll (robot) with amnesia. He may look like a small boy, but his body contains terrifying power. He believes that if he cooperates with him, a way will surely open up.... Reg is also driven to adventure in order to learn his own identity and to protect a reckless girl.... With the help of their friends, Rico and Reg set out for the first layer of the Deep World. They dive quickly and surely, keeping an eye out for the shadows of their pursuers. They were excited to see the depths they had not yet seen. But the Abyss, the cave of evil, swallows them both without mercy....

深く潜った者を決して帰さない、呪いを湛えた大穴『アビス』。底知れぬこの秘境の大穴に、少女・リコは挑もうとしている…。偉大な探窟家であり、生き別れの母・ライザに会うために。存在するかも定かではない『奈落の底』への到達…。極めつけに無謀な挑戦だが、リコにはひとり勝算があった。アビスの中で出会った、記憶喪失の機械人形(ロボット)・レグ。見た目は小さな少年だが、その身体には恐るべき力を秘めている。彼と協力すれば、必ずや道は開けるはずだと…。レグもまた、自身の正体を知るため、無謀な少女を守るため、冒険に駆り立てられていくのであった…。友人たちの協力を得て、深界一層へと踏み出したリコとレグ。追っ手の影を気にしつつ、素早く、確実に潜っていく。まだ見ぬ深さに期待を募らせる彼らであったが。魔窟『アビス』は、ふたりを容赦なく飲み込んでゆく…。