History:Established: 1965
League achievements:
Japanese League Champion -2010, 11, 15Japanese League Semifinals -2009, 25 Japanese League Finalist -2012 Japanese League Central Division Regular Season Champion -2024, 25 Japanese League Central Division Regular Season Runner-Up -2017 Japanese League Eastern Division Regular Season Champion -2009, 10, 11, 12 Japanese League Eastern Division Champion -2010, 11 Japanese League Eastern Division Finalist -2009 Japanese League Western Division Champion -2015 Japanese JBL Superleague Semifinals -2003, 08 Japanese JBL Superleague Finalist -2006 Japanese Cup Semifinals -2003, 07, 14, 25, 26 |
League positions:
| Season | Tier | Division | W-L | Position + PlayOff | Cup | Asian competitions |
|---|---|---|---|---|---|---|
| 1999-00 | 1 | JBL | 1st | |||
| 2000-01 | 1 | JBL | 2nd | |||
| 2001-02 | 1 | JBL | ||||
| 2002-03 | 1 | JBL | 8th | Semifinals | ||
| 2003-04 | 1 | JBL | 5th | |||
| 2004-05 | 1 | JBL | 6th | |||
| 2005-06 | 1 | JBL | 2nd | |||
| 2006-07 | 1 | JBL | 7th | Semifinals | ||
| 2007-08? | 1 | JBL | 3rd  | |||
| 2008-09 | 2 | BJ League | 36-16 | 2nd  lost in Semis 84-89 to Tokyo Apache | ||
| 2009-10? | 2 | BJ League | 41-11 | 1st  beat Osaka E. 84-56 in the Finals | ||
| 2010-11 | 2 | BJ League | 38-8 | 1st beat Ryukyu GK 82-68 in the Finals | ||
| 2011-12 | 2 | BJ League | 35-16 | 2nd  lost in Finals 73-89 to Ryukyu GK | ||
| 2012-13 | 2 | BJ League | 29-23 | 9th | ||
| 2013-14 | 2 | BJ League | 28-24 | 8th, lost in Q-Finals 0-2 to Ryukyu GK | Semifinals | |
| 2014-15 | 2 | BJ League | 39-13 | 5th beat Akita NH 71-69 in the Finals | ||
| 2015-16? | 2 | BJ League | 33-18 | 8th  | ||
| 2016-17 | 1 | B1 League | 33-27 | 6th, lost in Q-Finals 0-2 to Alvark Tokyo | ||
| 2017-18 | 1 | B1 League | 25-35 | 12th | ||
| 2018-19 | 1 | B1 League | 22-38 | 13th | ||
| 2019-20 | 1 | B1 League | 5-36 | 18th | ||
| 2020-21 | 1 | B1 League | 12-47 | 19th | ||
| 2021-22 | 1 | B1 League | 10-47 | 11th (Group West) | ||
| 2022-23 | 1 | B1 League | 23-37 | 6th (Central) | ||
| 2023-24 | 1 | B1 League | 46-14 | 1st (Central), lost in Quarterfinals 0-2 to Hiroshima D. | ||
| 2024-25 | 1 | B1 League | 47-12 | 1st (Central), lost in Semis 1-2 to Ryukyu GK | Semifinals | |
| 2025-26 | 1 | B1 League | 36-24 | 5th (West) | Semifinals |
