Toyobun Dynasty

Toyobun Dynasty is the period that marked the uncontested Surean High School Basketball Championship by Toyobun High School for 20 years spanning from 1989 to 2009. The period ended when Toyobun was dethroned by Damasai High School in 2010.

History
In 1987, Toyobun High School hired ex SBA player, Itogata Sanji, as their basketball club's coach. Itogata quickly changed their training regimen and Toyobun basketball club managed to get into the finals of the Summer Inter-High Basketball Tournament Preliminary, but was defeated in the quarter finals of the Inter-High Tournament.

In 1988, Toyobun became the 1st runner up for the Summer Inter-High Tournament. They also proceed to be the 1st runner up for the Autumn Game and National Winter's Cup, losing to the defending champion, Shinda Prefecture High School from Tengei. Their performance earned them a reputation in Takajima which attracted more basketball fans to enroll in the school the following year.

In 1989, with all their members being trained by Itogata from day one, they defeated the defending champion for the first time in the Inter-High Finals, by dragging the game into overtime and won with 97-96. They proceed to win the Autumn Game and National Winter's Cup again for the year, officially starting the Toyobun Dynasty.

Ever since defeating Shinda Prefecture High School in 1989, there had not been any school that possess a real threat to Toyobun High School in all 3 national high school tournament. The one closest to threaten their position would be in 2004 when Yokugyou High School managed to drag the game into overtime during the National Winter's Cup, but ended up losing with 108-95.

In 2010, Toyobun High School lost to Damasai High School in quarter finals of Summer Inter-High with 99-92, being defeated for the first time in 20 years, despite being recognized as having the strongest member lineup in 5 years. In the National Winter's Cup that year, Toyobun didn't managed to enter the final league as the representative of Kunji Region as they lost to Kisenjong University Affiliated High School 3-1 in the best of 3 elimination stage. 2010 marked the end of the superior dynasty where Toyobun reined for 20 years uncontested.