This is a four act Japanese story structure. According to the wikipedia page for this concept:

1. kiku (起句) is 'ki (起)': introduction, where 起 can mean rouse, wake up, get up
2. shōku (承句) is 'sho (承)': development, where 承 can also mean acquiesce, hear, listen to, be informed, receive
3. tenku (転句) is 'ten (転)': twist, where 転 can mean revolve, turn around, change
4. kekku (結句) is 'ketsu (結)': conclusion, though 結 can also mean result, consequence, outcome, effect, coming to fruition, bearing fruit, etc.
   In a story, the following might happen:
5. Introduction (ki): an introduction to the characters, era, and other information required to understand the plot.
6. Development (shō): follows leads towards the twist in the story. No major changes so far.
7. Twist (ten): the story turns toward an unexpected development. This is the crux of the story, the yama (ヤマ) or climax. If the narrative takes several turns, this is the biggest one.
8. Conclusion (ketsu), also called ochi (落ち) or ending, wraps up the story.

Kishotenketsu is often called a story structure without conflict, at least in comparison to Western storytelling.