O.SHI.GO.TO.

This slice-of-life gag manga follows the exploits of Yomoyama Hanako as she joins the Planning Department of the Greater Japan Trading Company. Yomoyama soon learns to manage the madness of life in a typical Japanese office.

The serialization originally began in 1988 in the magazine Hanako, during the height of the bubble economy. The first volume of the 2010 Shinsouban edition collects the first 128 chapters covering up the years from 1988 up to 1998, encompassing the years of the Japanese Bubble Economy, up until when the bubble burst. The second volume of 129 chapter cover the time period from 1998 until 2005, the post-bubble recession period.

(Source: JManga and Natalie)