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Removed the three HDash during 00:00:111 to 00:04:911. Now they are 2.1x big dash.
About 00:01:711 (1,2,3), I'd like to make some pattern varity here so I changed pattern to antiflow. If I just copypaste and Ctrl+H 00:00:111 (1,2,3) it seems strange since players just need to stand between 00:00:711 (3,1). Free to reopen on 00:01:711 (1,2,3)'s pattern design.

I will keep this one temporarily 'cause #3637896/9766346 and I thin there's no better idea to avoid pattern repetition except antiflow. I assume under Rain using a little antiflow is not that uncomfortable.

Added

#3655462/9840074

#3655462/9840562

00:03:311 (2,3,4,5,6) - These 5 flute did hapen on white 1/1 tick, meaning they did begin 1/16 earlier. Tend to keep.

00:14:511 (1,2,3,4,5,6) - is the same as 00:03:311 (1,2,3,4,5,6) but you used 1/6 instead

00:27:311 (1,2,3,4,5,6) - too

Rejected. These two parts are different as in my ears they are 3/16 and 1/6 seperatedly.
Yes I can't believe it when I hear them first but it did different. They ARE 3/16 and 1/6

It turns out you are right on 00:14:511 (1,2,3,4,5,6,7) and 00:27:311 (1,2,3,4,5,6,7) as 1/5.
See #3666579/9844887

did (but is that little strange for one-object combo?)

Did and removed some similar NC

Yup did

also this 00:17:011

Fair. Applied.
Also applied to Overdose diff.

Undoed because of #3666574

00:17:311 (3,1) - same issue

00:26:911 (3,1) - same issue

00:30:111 (3,1) - same issue

Keep. I tend to keep this empty gap as a halt and players well experience a sudden stop of backdround zither. So I'd like to keep all of these.

(will reslove until I figure out what snap this is here, background zither here is very confusing)

Currently applied as #3666579/9844911
May be simplified since this is Rain diff? Free to reopen on simplfying suggestions.

Now this is a 1.80x gap. Also moved 00:15:111 (7) little lefter.

did

nerfed to dash and rearranged a little pattern

It looks always weird 'cause this weird snap. I did some try on pattern but decide to keep this in the end.

nvm saw this post #3666579

Welcome to the snapping hell
But btw this note is somehow simplify-able. Free to reopen this if you or others think this note could be deleted in Rain diff (For rythem simplify reason)

I mean personally i dont hear a noticeable sound. I would say remove it on rain, but leave for more opinion first owob

Did this while recieving Mniam's suggestion here :D

The reason I ignored these is that during the first kiai part, the main pattern is those 4 strong 1/2 slider HDash swing. I don't want to map some 1/4 here to exceed following main part's role. You may mention I mapped more 1/4 on begin from 00:46:511 because 2nd kiai is becoming stronger, both intro and main pattern.

00:38:311 (1) - this is still okay since the melody is not on the downbeat

Applied on 00:35:111, 00:38:311 and 00:41:511 for consistency during 1st kiai.
Keep reverse sliders in 2nd kiai since music downbeat becomes stronger and I think it's enough to support the strong mapping.

yep owo

I moved VERY little closer until the minmum 1/2 HDash trigger distance of 00:41:111 (3,4) and moved 00:40:911 (2) closer. If you are meaning HDash here should be cancelled plz tell me (I don't think you are meaning this tho)

buffed

Both do as suggestion a little.

00:44:506 (5,6) - i think these two circles can buff to 1.0x its very close so far

Changed 00:44:506 (5,6) to 0.9x. Before this mod it's 1.1x so I won't let it bigger than 1x since I accept this mod

nice

Related mods: #3655459
Since I decided to use wiggle-like pattern here under the reason of more pattern variety and other experienced mapper not showing objection for this pattern design I would tend to keep.
Also doing HDash here would be a total rearrange for map which is hard for this part of this kiai qwq

same with 00:52:511 (5,6)

Both on their minmun HDash trigger and I think there's no space to do this so sadly no :(

switch the distances between 00:48:911 (3,4) - and 00:49:311 (5,6) - because sadegg's suggestion makes sense, 00:49:311 (5,6) - flute has a way lower pitch here and it's rather strange that you're giving it more distance

00:52:111 (3,4,5,6) - here too

Although this will cancel the HDash 00:49:111 (4,5) (Which in my opinion before this would be against of pattern consistency), I decide to apply this mod since two modders' opinion. I moved 00:49:311 (5) same place as 00:48:911 (3) so that I think this will represent music well.
Also applied same stuff on 00:52:111 (3,4,5,6).

00:52:511 (5,6) - same

Applied

Since main pattern of kiai is 1/2 HDash swing I'd like to keep this rythem for consistency. Also I'm thinking 1/4 on these may a little tricky for Rain players.

hm, After consideration I tend to keep following the drums here since players are reaching the final end. And I think --Although I following drums and players press keys by drums-- the movement here did represent flute well. For example:
00:52:911 (1,2) and 00:53:311 (3,4) - First and the longger flute with lower tune, now players just wiggle a follow flow.
00:53:711 (1,2) - Second flute time with a tune twist, so player comes to a C-shape stand.
00:54:111 (3,4) - Third and the highest flute so players meets an antiflow.
So I tend to keep the pattern now. If others think following flute would be better I may change but I would just cancel HDash between 00:53:211 (2,3) (and familiar) and rearrange 00:53:611 (4).

Has synth background sound to support

Yep reasonable, applied owo