Board Thread:Theories and Rumors/@comment-30938718-20180803102949/@comment-38772855-20190331115354

Chimandino wrote Harumi: She is under 18. She is younger than all of the Ninja. If she would be 18, that would mean, Lloyd is 19 and the other Ninja are over 20. In Season 1 the ninja were 19, S2 they were 20, S3 they were 21, S4 they were 22, S5 they were 23, S6 they were 24, S7 they were 25, S8 they were 26, S9 they were 27, and S10 they were 28, meaning that Harumi is 18, and Zane is in his 40s.