01:21:772 (83) - Consider adding kiai here to emphasize/represent the chorus part which goes until 01:22:710 (90) - .(all diff)
The current SV in Kiai seems to be slow, kiai is supposed to be the intense part of the beatmap. I suggest to nerf the sv on kiai part and change the base sv to 1.70x or 1.60x (its your choice if you still wanted 1.40x as your base sv, but nerf the kiai part)
00:38:657 - → 00:48:970 -
Spread issue. I think you need to nerf Futsuu diff because it's look similar with Muzukashii. Using same pattern between 3 different diffs is not really good I think. Also the notes count actually is quite far.
• Futsuu (239) → Kantan (134) = 105
• Muzukashii (285) → Futsuu (239) = 46