Tenkaichi

• Name — Tenkaichi: The Greatest Warrior Under the Rising Sun • Ja Kanji — テンカイチ 日本最強武芸者決定戦 • Ja Romaji — Tenkaichi: Nihon Saikyō Bugeisha Ketteisen • Genre — * Historical • Martial arts

• Type — manga • Author — Yōsuke Nakamaru • Illustrator — Kyōtarō Azuma • Publisher — Kodansha • Publisher En — Kodansha (digital) • Imprint — Young Magazine KC Special • Magazine — * Young Magazine the 3rd (January 6 – April 6, 2021) • Monthly Young Magazine (May 20, 2021 – present) • First — January 6, 2021 • Volumes — 14

• Type — tv series • Director — Masashi Abe • Writer — Kazuharu Sato • Music — Hayato Matsuo • Studio — Fugaku • First — April 2027 • Last — scheduled

• Portal — yes Tenkaichi: The Greatest Warrior Under the Rising Sun is a Japanese manga series written by Yōsuke Nakamaru and illustrated by Kyōtarō Azuma. It began serialization on Kodansha's Young Magazine the 3rd manga magazine in January 2021. After the disbandment of the former manga magazine, it was later transferred to Monthly Young Magazine in May the same year. An anime television series adaptation produced by Fugaku is set to premiere in April 2027.

In an alternate history, Oda Nobunaga succeeded in unifying Japan. Ten years into his reign in the year 1600, he reveals he is dying of a terminal illness. Wanting to see spectacular battles before he dies, he holds a tournament to determine his successor. Sixteen warlords enter, but have champions compete in their place, sixteen of the greatest warriors of Japan. It is a single elimination tournament where anything goes and death is encouraged.

• Miyamoto Musashi: • Honda Tadakatsu • Kenichirou Matsuda • Oda Nobunaga • Kenyu Horiuchi

Written by Yōsuke Nakamaru and illustrated by Kyōtarō Azuma, Tenkaichi: Nihon Saikyō Bugeisha Ketteisen was initially serialized in Kodansha's Young Magazine the 3rd from January 6 to April 6, 2021, when the magazine released its final issue. It was later transferred to Monthly Young Magazine beginning on May 20 that same year. Its chapters have been collected into fourteen tankōbon volumes as of August 2026. The series is published in English on Kodansha's K Manga app.

An anime television series adaptation was announced on April 11, 2025. It will be produced by Fugaku and directed by Masashi Abe, with series composition handled by Kazuharu Sato, characters designed by Ryōji Nakamori, and music composed by Hayato Matsuo. The series is set to premiere in April 2027.