I think this was already uploaded. The next page shows the drop was only a few feet, and the Reimu needs to hide from the rest of the Alices (who are still in close proximity).
whoever edited this didn't double check their spelling... "ITZ" -> "It's" plus... whatever slurring a koyukkuri would have. Itch? Ish? Ish, right? and "STRENGHT" is misspelled. It's "Strength".