Abstract
Various games are played by people every day. Conventional games are considered to be played in a time space clearly separated from everyday life by a "threshold. In other words, the "time space of games" and the "time space of daily life" are separated by a "threshold, " and this is where the "boundary of "Ba"" in the "System of "Ba"" arises. However, by bringing in a "mechanism" that serves as a "catalyst" or by creating a "fusion zone" where the two time-spaces overlap, it becomes easier to go back and forth between the "game time-space" and the "everyday time-space" or they become connected to each other in the first place. As a result, players will take in the game as an extension of their own daily activities or in their daily activities, and as a result, the "threshold" will disappear or be diluted.
