The Ozaki family was all selected as "ceremonial vessels" by Tianjin Maro.
Based on Ozaki Jūzō's original organ tissues, they were decomposed and restructured generation after generation into "clones."
In a certain sense, they are the same person, yet actually they are several different independent entities.
It's like the paradox of the "Ship of Theseus."
Though the situation of the Ozaki family isn't exactly akin to this paradox, there are indeed some similarities.
However, exploring whether Ozaki Ryuichi is "both his father and his grandfather" seems to lack practical significance.
More realistically, it is the role of the so-called "ceremonial vessel" selected by Tianjin Maro.
This is directly related to the "spirit" of Kinzan Biko Kami.
