Not a 1.0 Blank A route.

Equips: [C-LEFT C-DOWN C-RIGHT : OTHER_THINGS] caps means new item, lowercase means it was already there
RBA notation: {B Bottle/C-Right}
Bottle/exoquip notation: (Slot/Contents) 
(a number refers to a bottle slot from 1-4, otherwise refer to the item that's there or is supposed to be there)

Sword shield ocarina bottle navi dive to botw
Stick (1s), [null null OCARINA]
ocarina dive chus (10c) [CHU (1/BOTTLE) STICK]
climb out, deku nuts (5n), wallmaster, exit

Optional HESS to bugs
Kakariko bugs
bottle on B like this https://youtu.be/XENB1SPyqm4 {Bugs/Stick}
Exit Kak, wait for night, re enter
[chu STICK (1/BOTTLE)]
Graveyard, kill poe with stick (0s) (or ISG if you want to keep the stick), {Bottle/Bottle} catch poe, {Bugs/Poe} (29c)
//halfmilk probably isn't necessary here. we don't need that many chus if we RBA again, but it's an option
Shield grave, Hylian Shield, fairy fountain, dump 2 more chus (26c), {Halfmilk/Poe}
[chu stick (3/BOTTLE)] fairy on C Right, savewarp

--fix chu counts from here and implement 4th bottle RBA and such--

LW, grotto outside GC (30c), fish in poe bottle
Goron City (29c), megaflip into chamber (28c)
weirdslide past door (27c)
megaflip to center (26c)
--REMEMBER TO EQUIP HYLIAN SHIELD ON DEATH FOR THE REST OF THE RUN--
Hover to enter fire (25c)
Left key (yay no darunia), right room left key
Death jump to right key (24c), blow up wall (23c)
Elevator room
Green room 7 or 8 chu hover https://youtu.be/nGOzs2UD_V0 , vine clip (14c)
Firewall death jump (13c)
Firemaze, chu the door (12c)
[chu STICK (egg/fairy) : DEKU]
Flare dancer (9c)
Chu the switch (8c)
Hammer, [chu stick (EGG/HAMMER)] hammer key, savewarp

Torchslugs, flare dancer with hammer and stick PCS, bk [chu (STICK/FAIRY) <or real fairy if you're confident> (egg/hammer)]
Megaflip to boss door (7c)
Volvagia:
Dump fish in hole, chu the fish with all remaining chus so they all explode (0c)
and volvagia is dead!

HOW TO MAKE THE ROUTE SAFER AND EASIER:
To keep the poe to RBA with later for more chus, buy deku nuts and duplicate a bottle over them when you catch the fish.
RBA setups:
After greenroom vineclip: https://youtu.be/EXtsDQ-yRhs
After firewall: https://youtu.be/xwvVGZ3Md2o

You can also get bombs. This costs some chus, but here's a way to skip using one to enter DC: https://youtu.be/Fq3cZHeFzDg
Remember: if you get bombs, you can get the 30 bomb upgrade from the rolling goron and 10 bombs before Flare Dancer 1, and 10 bombs after in the chest also.
You can also just do a ground jump for the second key in the right room instead of a death jump.
The fastest bombs route doesn't do RBA at all, but that's harder than taking the time to RBA.

Keep Hylian Shield equipped whenever possible. If the deku shield burns, it's a reset.
Save after the greenroom key.