yo.
[Oni]
00:00:120 (1,2,3,4,5) - On personal view it feels odd to start with a stream, you may want to remove (2) if other agree with that.
00:27:762 (146) - Since you held the previous combo pattern pretty short you could do this too here by removing this note.
00:33:334 (170,171,172,173,174) - Instead of kkddk try ddkkd, I believe it plays smoother and it sounds better if you listen to the music. Not that kkddk is bad here but imo ddkkd works better for me.
Very solid Oni Difficulty.
[Muzukashii]
00:15:977 (55,56) - switch? There's nothing much to say except that d k d fits better here than d d k, music-wise.
00:17:477 (59) - personally, I'd prefer to leave 00:17:262 (58) - alone and not to be connected with 00:17:691 (60) - , a standing alone finisher sounds for the most time better for a "new" part of a song.
00:22:405 (78) - Personal preference would be to move the note on 00:22:620 - to emphasize the vocals on 00:21:977 (76,77) - better.
00:26:798 (94,95) - The triplet doesn't contribute much here and doesn't bring the effect you want to aim by using them. I would remove these two notes to achieve a better emphasis with 00:26:691 (93,96,97) - on the vocals.
00:37:405 (136,137,138) - What about removing (137) and swap the hitsounds of (136,138)? It sounds better according to the music.
00:39:334 (143) - d maaaaaybe?
00:42:334 (155,156) - A switch might sounds better here, idk. Just my feeling.
The Muzukashii Difficulty looks also pretty good, not exactly how I'd go to the song but definitely acceptable and well-done in general.
[Futsuu]
00:01:834 (5) - the transistion is kinda odd here, you may want to move the note on 00:02:048 - ?
00:42:120 (81) - k sounds cooler imo, what do you think?
At first I thought the jump is somewhat big since Futsuu feels by far emptier than Muzukashii but if I compare them both in real time it's fine, dense- and rhythm-wise it's an acceptable difficulty increase from futsuu > muzukashii. Nice job.
[Kantan]
00:24:977 (31) - You may want to add a break here and remove the note. A little break wouldn't hurt at all and help newer players to take a short break.
00:37:405 (46) - I felt more like you should play k k k on 00:36:120 - 00:36:977 - . Means that you should move the note on 00:36:548 - .
This Kantan Difficulty is surprisingly good and well-designed.