My experience with Archon is a lot slower than if8regin describes, but the first two realms I was missing 'essential' items for the Archon to do well. That said, I was doing about e5 in a day IIRC around e400 on my first realm, and I got all the useful Archon items by the end of my third Realm.
Nerco/Risen Giant is usually not used above e300 because better classes are available. I would use a Tier 2 class, since you have unlocked them. Shaman would allow you to use similar abilities. That said - while Shaman should be able to get over e400, Desolator and Archon are faster. I have played Archon over 1e850. I have not played Desolator much.
@Sakgeres - I have not been near the beginning of this game in a while, but that should work. I would also get a pet when available (Pixie should work well, and is only 25 clicks to unlock - though any is better than none). You could consider another class (Druid is easy to unlock), but that would admittedly be more complex (and faster).
@KaisarDragon- all the WHAT Tasks should be feasible, if you are far enough along in the game (at 5.41e5 memories, I am not for two of them. That said, I got all the Goals). That said, it is quite possible that it is not completable for you this year.
An idea for the future would be to add some simple Kanji. Though this can rapidly get more complex, as there could be multiple readings in some cases. Perhaps having small Hiragana at the top of the Kanji would make this more feasible.
...other ideas would be to use obsolete kana, the archaic Yi, Ye, and Wu - doing them in Iroha order as a challenge, and adding some Hentaigana.
I actually didn't know about the Kunrei-shiki system. I was always taught Hepburn implicitly in the Japanese classes I took. I'll read into that. Thanks for the suggestion!
UPDATE: I have added Kunrei-shiki romanization! You can access it in the Extra Configurations button in the Level Selection Menu. Let me know if you run to any issues. Thanks
@JackVermicelli - Kana (Hiragana and Katakana in this game) are the 2 main syllabaries for the Japanese language. This is a bit like a typing attack game, deliberately. In other words, the symbols are a bit like learning the alphabet in two very different fonts in an alphabetic language. So the point is to teach those 'unnecessarily complicated' figures.
@ih8regin - you can eventually get Pet XP up quickly enough that the climb to T3 Lv 300+ is fairly short. Ignoring the first exile I can get them, it is now sub-hour, and often less than 5 minutes.
@LeMonk212- You need 600 attribute points and Paragon 21 to use Commisar's torn sleeve, so Demonologist would not get a lot of use out of it. It is apparently very useful for Oni, though.
@LeMonk212 - In theory, assuming you have the best equipment for the class all at Epic+ and limitless time to play actively, it looks like it is probably the Temporalist. The Archon requires less (particularly in active play), but it is slower in the best case. My main source: https://idle-wizard.fandom.com/wiki/Class_Timescaling_Guide
What t focus on for memories depends a lot on youor preferred class. For Archon, Remembering Complexity is very strong. Forefather's Wor and Muscle memory are also very nice. Recalling Power is pretty good.
That said, by now (2e5 memories), I have also maxed Reclaimed Methods
I note that the error message on changing my name was "Имя может содержать только русские или только латинские символы, один пробел и символы "_" и "-", which translates roughly to "You can only use cryllic or latin characters, _, -, and at most one space"
@Jergal123- geometry is needed, not calculus. The angle of incidence equals the angle of refraction - assuming the physics in this game were perfect, which it isn't.
@3xpr3ss- Unless Zenith is essential to your play (I would guess not), I wouldn't worry too much. I got Zenith the second time I was at Paragon 34, after several realms, and levels (3) in Timeless Frame (which may or may not be a coincidence).
@LeMonk22 - Yes. I am saying you may already have crafted all the weapons, head, chest, hands, feet, waist, neck, finger, back and wrist items. There may be nothing new to craft until Paragon 23, which opens another item slot.
@LeMonk212- you could be below Paragon 9 (if you exiled)
Otherwise, maybe you have a checkbox or selection in one of the equipment menus that is filtering everything out? Unchecking all the boxes and setting the item type drop-down to 'All' should remove the filters.
Also, make sure you have 'Gear' or 'Crafting' selected in the upper right.
 "Idle Wizard"){kind=icon}
 "Kana Seito Defense"){kind=icon}
 "Age of Revenge"){kind=icon}
 "RICCOSHADE"){kind=icon}
I actually didn't know about the Kunrei-shiki system. I was always taught Hepburn implicitly in the Japanese classes I took. I'll read into that. Thanks for the suggestion! UPDATE: I have added Kunrei-shiki romanization! You can access it in the Extra Configurations button in the Level Selection Menu. Let me know if you run to any issues. Thanks