| 1984-04 |
The company Ihara Co., Ltd. was established in April 1984. |
| 1984-04 |
Ihara Co., Ltd. established. |
| 1985-05 |
Tomato and Onion Besshima store opened in May 1985. |
| 1985-05 |
Tomato and Onion Besshi store opened. |
| 1990-02 |
Moss Burger Shin-Ikebashi Kikouji store opened in February 1990. |
| 1990-02 |
Moss Burger Shin-Ikebashi Kikoji store opened. |
| 1995-12 |
Book Off Nakadera store opened in December 1995. |
| 1995-12 |
Book Off Nakajima store opened. |
| 1997-07 |
Hard Off Torio store opened in July 1997. |
| 1997-07 |
Hard Off Torio store opened. |
| 1997-09 |
In September 1997, GY Co., Ltd. was established after acquiring operations from Ihara Co., Ltd. |
| 1997-09 |
Established AGY Co., Ltd. by acquiring business transfer from Ihara Co., Ltd. |
| 1997-10 |
Katsuretsu Tei Mishima store opened under GY Co., Ltd. in October 1997. |
| 1997-10 |
Katsuretsu-Tei Mishima store opened by AGY Co., Ltd. |
| 2000-10 |
MG S Co., Ltd. was established in October 2000. |
| 2000-10 |
Established MGS Co., Ltd. |
| 2000-11 |
Tori Ichi Tsum Imabari store opened under GY Co., Ltd. in November 2000. |
| 2000-11 |
Tori Ichi Tsumugi Imabari store opened by AGY Co., Ltd. |
| 2000-12 |
Tantan Men Ichiban Tei Higashiyori store opened under GY Co., Ltd. in December 2000. |
| 2000-12 |
Tantanmen Ichiban Tei Higashiyō store opened by AGY Co., Ltd. |
| 2001-03 |
Hard Off Shinguu store opened in March 2001, becoming the first Kyushu branch. |
| 2001-03 |
Hard Off Shingu store opened (first Kyushu branch). |
| 2003-09 |
Tia Family Table Imabari store opened under GY Co., Ltd. in September 2003. |
| 2003-09 |
Tia Family Table Imabari store opened by AGY Co., Ltd. |
| 2004-08 |
Hobby Off first store opened in Oita Kokufo in August 2004. |
| 2004-08 |
Hobby Off No.1 store opened in Oita Kokufo. |
| 2005-09 |
In September 2005, MG S Co., Ltd. and GY Co., Ltd. merged and changed the company name to Arigatou Service Co., Ltd. |
| 2005-09 |
MGS Co., Ltd. and AGY Co., Ltd. merged. |
| 2005-09 |
Name changed to Arigato Service Co., Ltd. |
| 2008-04 |
In April 2008, Tori Ichi was renovated, renamed to Chishouka Tori Ichi, and added fish and sushi menus. |
| 2008-04 |
Renovated Tori Ichi and renamed to Chishouka Tori Ichi (added fish and sushi menu). |
| 2008-07 |
In July 2008, after acquiring operations of Book Off Ichi no Miyako and Oji stores from an FC franchise located in Shimonoseki, Yamaguchi Prefecture, the company expanded into Yamaguchi Prefecture. |
| 2008-07 |
Received business transfer of Book Off Ichinomiya store and Oji store from FC franchise located in Shimonoseki, Yamaguchi Prefecture, and expanded into Yamaguchi Prefecture. |
| 2012-11 |
Listed on the Osaka Stock Exchange JASDAQ market in November 2012. |
| 2012-11 |
Listed on the Osaka Stock Exchange JASDAQ market |
| 2016-01 |
Established MOTTAINAI WORLD CO., LTD., the first overseas subsidiary, in Phnom Penh, Kingdom of Cambodia, in January 2016. |
| 2016-01 |
Established MOTTAINAI WORLD CO., LTD., the first overseas subsidiary in Phnom Penh, Kingdom of Cambodia |
| 2019-12 |
Established MOTTAINAI WORLD (THAILAND) CO., LTD. in Bangkok, Kingdom of Thailand, in December 2019. |
| 2019-12 |
Established MOTTAINAI WORLD (THAILAND) CO., LTD. in Bangkok, Kingdom of Thailand |
