Tasuku Ando is a former JAA researcher and the biological father of Shin Asakura. An old comrade of Asakura, he spent his last years on the run for what he knew, and his cold, self-serving choices masked a buried care for the son he claimed to despise.
The family resemblance to Shin is unmistakable. Ando is a middle-aged man carrying medium-length blond hair along with matching facial hair. His outfit runs to a long-sleeved polo, pale trousers, and leather shoes.
Ando was a hard, callous man who thought little of endangering bystanders to save his own skin, going so far as to rig a ship with a bomb wired to his own heartbeat. Hunted for what he knew through the JAA, he lived in constant flight, and learning the truth behind the Al-Kamar Orphanage unsettled him enough to walk away from his post there. For all his professed hatred of Shin, some genuine feeling for his son survived underneath: he placed the boy with a fellow researcher rather than the assassins' orphanage, later shielded him from a strike by Ikari, and in his dying moments still longed to see him once more.

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Years before the main story, Ando handed the young Shin over to his friend Asakura and disappeared, a move that left Asakura resentful at first before he came around and raised the boy well. Having no fighting ability of his own, the researcher kept the assassin Ikari on retainer as a bodyguard. His past finally caught up with him during the JAA Jail Arc, where he weathered Ikari's assault for a surprising stretch before succumbing, still yearning at the end to look upon the son he had left behind.
Yes, Tasuku Ando is the biological father of Shin Asakura in Sakamoto Days, though Shin was raised by Ando's friend Asakura instead.
Tasuku Ando is a former JAA researcher and the biological father of Shin Asakura. An old comrade of the man who raised Shin, he spent his final years on the run for what he knew before dying during the JAA Jail Arc.
Tasuku Ando gave up his son Shin to his friend and fellow researcher Asakura rather than send him to the assassins' orphanage, a decision made despite Ando's professed hatred for the boy, hinting at a buried care underneath his cold exterior.
Tasuku Ando died during the JAA Jail Arc after his past caught up with him, weathering a lengthy assault from the assassin Ikari before finally succumbing, still longing to see his son one last time.
As a JAA researcher, Tasuku Ando learned the disturbing truth behind the Al-Kamar Orphanage, a discovery that unsettled him enough to abandon his post there. He then spent his final years on the run from the JAA for what he knew.
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View on FandomThis content is original writing by Daddy Jim Headquarters based on the Sakamoto Days anime series, manga, and official materials. Sakamoto Days was created by Yuto Suzuki, published by Shueisha, and animated by TMS Entertainment. All rights to Sakamoto Days and its characters belong to their respective owners. Episode and chapter references are cited where applicable.
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