One of the two Mutō brothers who struggles to survive alongside his family following catastrophic earthquakes that trigger the gradual collapse of the Japanese archipelago. His journey embodies the physical and psychological toll of the disaster.
Paternal protection during the evacuation.
Mother-daughter bond strained by generational and ideological differences during the commune phase, eventually reinforced by survival necessity.
Sibling bond navigating trauma together, balancing mutual support with diverging survival strategies.
Initial hostility and mistrust transform into a covert alliance when Ayumu deciphers Kunio's desperate warnings.
Peer companions who navigate trauma together, offering mutual emotional support during high-stress transitions.
Divergent strategies at Shan City.
Explore the full interactive character relationship map of Japan Sinks: 2020