1. Futsuu (2.52 stars, 330 notes)
2. Kantan (1.81 stars, 169 notes)
3. Muzukashii (3.36 stars, 459 notes)
4. Oni (3.84 stars, 540 notes)

1. 00:00:548 - It would be better to start the map here, since this is the beginning of the section you start mapping. Since you started mapping 00:01:888 - here, the player skips a single measure an starts the first section midway through. I'll give more specific instruction on how to fix in each difficulty.
2. 00:05:743 - / 00:15:296 - consider removing kiai from this section, as this section is not the most intense section of this opening. In most cases with openings (including this one), the chorus (marked by kiai time) is the section where the vocalist has the highest intensity,
3. "rest_in_peace_fuuka_by_shaunyboi14-d8g7sa4" is not used in the map, so it must be deleted.

1. Regarding general, start with a big don or big kat 00:00:548 - here, match it 00:03:229 - here, 00:03:564 (4,5,6) - remove these for consistency for the first section, and move 00:04:905 (7) - this 1/2 back for more accurate rhythm. The 1/2 pattern is justified by the strong sound there.
2. ...I'll continue later in game!
   This is so I can ask questions and stuff. It doesn't mean your map is bad.

donkat wrote:

General
Not really a big problem but the mapper's name in the BG is cut off. Resize if you want.
00:48:816 (1) - 00:56:525 (32) - From these two points I think you should remove Kiai because it seems there are two choruses, but this point doesn't feel as chorusy.

Kantan
00:04:737 (6) - This beat is really misplaced ingame.

Futsuu
Add more finishes, at the start of new sections and on powerful beats.
eg 00:05:743 (1) and maybe 00:07:084 (6) . Also 00:27:363 (33) , 00:38:089 (77) , 00:59:374 (4)
00:03:397 (12,13,14,15,16,17) - Move these back so that (12) is resting on the beginning of the bar on the white tick. The rhythm makes more sense.
00:05:575 (21,1,2,3,4,5,6,7,8,9,10,11,12,13,14,15,16) - Change the note patterns up a bit - the rhythm is the same for three whole bars

Overall I think your Futsuu has the most problems and Muzu and Oni are pretty good already. GL! Looking forward to your mod (if you're doing it).