Episode 153 is a "breather" episode. It isn't moving the grand narrative of Kirari's career forward, nor does it feature a major concert performance. However, it is a love letter to the fans.
The episode opens with a bright, sunny morning at Hello! Project Plaza. Kirari Tsukishima (still as bubbly as ever) is practicing a new dance routine for her upcoming solo concert. Seiji, her ever-stoic manager, watches from the sidelines, clipboard in hand. kirarin revolution episode 153
An English-dubbed version of the series exists under the title Kilari . Episode 153 is a "breather" episode
Since the anime was approaching its conclusion around this time, the use of flashbacks felt earned. It serves as a reminder of how much Kirari has grown from a clumsy amateur to a top idol. For long-time viewers, seeing clips from the earlier seasons (the orange jumpsuits, the early SHIPS interactions) provides a nice dose of nostalgia. The episode opens with a bright, sunny morning at Hello