According to the search results, Yuta Okkotsu appears in different parts of the Jujutsu Kaisen series, including the prequel movie Jujutsu Kaisen 0 and the main manga series. Here are the specific chapters and episodes where Yuta appears:

• Jujutsu Kaisen 0: Yuta is the protagonist of the prequel movie, which takes place before the events of the main series.

• Main manga series: Yutas first appearance in the main manga series is in chapter 137. However, he is mentioned earlier in the series, in chapter 173.

Its worth noting that Yutas appearance in the anime adaptation of Jujutsu Kaisen is currently unknown, as the anime has not yet adapted the chapters where he appears in the manga.