Through watching this video a good amount of times over the last few months, between 7:36 and 8:46, as well as playing Kokomi during the test run and on friends' accounts, it added evidence that her A1 description is incorrect and should be "...after Nereid's Ascension animation ends...". So, what is the correct timing and way to interpret the description? Kokomi's burst animation lasts 75 frames, which is around 1.25 seconds (at 60 FPS). Her jellyfish duration is 12 seconds with a 20s cooldown. However, the jellyfish does not end directly on the 8 second mark of the cooldown, but rather, somewhere between 7.65 and 7.6 seconds, through www.watchframebyframe.com (though I unfortunately lost the video). If you take 7.65 (the "safe zone") and add the 1.25 seconds of the burst animation, (7.65 + 1.25), that would equal 8.9 seconds, matching the optimal "cutoff" time in the referenced video (It does state the first few frames of the 8.8 second mark is possible, albeit not reliable) Additionally, if it started from the frame Nereid's Ascension was casted, jellyfish uptime would also be shortened by 1.25 seconds, which is not the current case.