Mito

The club was founded in 1990 as Prima Aseno Football Club by the factory workers of Prima Ham (a food company) in Tsuchiura. It changed its name to Prima Ham Tsuchiura and gained promotion to the Japan Football League after finishing as runner-up in the 1996 Regional League play-off. It merged with FC Mito (founded in 1994) and re-branded itself as Mito HollyHock before the start of the 1997 season when Prima Ham decided to discontinue its financial support to the club.

Mito's application to play in the inaugural 1999 season of J. League Division 2 was initially turned down due to financial instability, and low home attendance at their stadium. However, after finishing 3rd in the Japan Football League in 1999, and having an increasing stadium attendance, the club was invited into the J. League in 2000. During their time in the J2 League, the club finished through the mid-table, with their highest placement being 7th in 2003 and 2019.

First ever piece of silverware and promotion to the top flight

Mito ended the 2025 J2 League season with high determination and flying colours after managing to win the league which is also the club first major honours in their history. Despite tying with league runners-up V-Varen Nagasaki with 70 points total, Mito won the league winning one game more than V-Varen Nagasaki. Mito were then promoted to the J1 League for the first time, after securing a 2−0 victory against Oita Trinita on the final gameweek of the season and also ending a 25-year season spell in the second division.