One exciting halo jump in a school story could be when a student overcomes their fear of heights during a skydiving event organized by the school's adventure club. They jump out of the plane and experience the rush of freefalling before the parachute opens.
The theme of acceptance is quite common. Fem Luffy often has to be accepted by the other characters in the story. This could be because she's different due to her gender or her slightly different personality traits. Also, the theme of self - discovery is prevalent. As fem Luffy navigates the pirate world, she discovers more about herself, her abilities, and her place in the grand scheme of things.
It could mean a man jumps from a height equivalent to 40 floors. Maybe it's a very dangerous or extreme act, perhaps in a situation of distress or as part of some extreme stunt.
Well, for time jumps to work well, you should have clear markers. Like a change in the setting or a character's reflection on the passed time. Also, make sure the new situation makes sense and builds on what came before.
You can do it by providing clear transitions and explanations. For example, use flashbacks or diary entries to bridge the time gap and make it understandable for the readers.