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Nippon Ichi Software President Tetsuhisa Seko Dies at 54 (Updated)
posted on by Crystalyn Hodgkins

(Note: Nippon Ichi Software lists his age of death at 55, but states he was born on January 21, 1971, which would make him 54 at his age of death.)
According to Nippon Ichi Software's website, Seko also served as the Director of NIS America.
Seko began working for SNK in April 1993, and later worked for Toshin in 2000. He joined Nippon Ichi Software in March 2002. Some of the positions he held were general manager for business content, general manager for network content, senior director of the management division, and senior managing director. He became the president and CEO in July 2023.
Nippon Ichi Software was founded in 1994, and NIS America was established as a subsidiary in December 2003.
Update: NIS America posted a statement on Seko's death on Friday:
The passing of Nippon Ichi Software President Tetsuhisa Seko was announced today.
— NISAmerica (@NISAmerica) January 24, 2025
He contributed to the development and success of many notable titles, including the Disgaea series and Phantom Brave.
We are deeply saddened by this news, and our thoughts are with his family,… pic.twitter.com/pjyU0gDZiO
The above statement reads:
The passing of Nippon Ichi Software President Tetsuhisa Seko was announced today.He contributed to the development and success of many notable titles, including the Disgaea series and Phantom Brave.
We are deeply saddened by this news, and our thoughts are with his family, friends, and the staff of Nippon Ichi Software during this difficult time.
Source: Nippon Ichi Software's website (link 2) via Hachima Kikō
this article has been modified since it was originally posted; see change history