Muchas gracias por la información ...
Viewing post in A Simple Life with My Unobtrusive Girl comments
Did just find out something that could help. If you're not above cheating you can use the new get40rfree cheat code to get all daily items in rpg mode, this will grant you 5 tower taro cards as well. to enter a cheat, click and hold on the character portrait next to your health during rpg mode. but hoooo boy, be ready for an ass whoopin'.
Here's a surefire way to win the fight. Equip a firebird feather, then go into the abyss. Next, use the tower taro card to spawn the sealed pillar, now prepare to use a death taro card, but wait until you destroy the pillar and the enemies spawn from it. Once they spawn, use the death card and try and survive until death kills everything on screen, including you. You will be resurrected but all the pillar enemies and lewd demon will be have been killed. If the eyeball doesn't drop the 1st time, immediately quit and try again until it drops.
Hope this helps!
As far as I know, using cheats will just grant you the "ZAKO" title, aka the noob title. This only affects 2 things, 1st being how Imuoto and Aki address you, and 2nd being that it gives you a 20% damage reduction. As for story and progression, it doesn't touch these, Dev said so on their DLSite page which has all the cheats listed and tells you how to use them. If the ZAKO title alone scares you away from using the cheat codes, it can actually be disabled now in the most recent patch 1.08 rev4, just navigate to the settings menu while in game and it's at the bottom.
Long story short, using cheats should not affect anything in the current build or future updates as the only "negative" outcome to using them is receiving the ZAKO title which is really just a joke/easter egg and can be disabled anyway if you find it bothersome.
Apologies for the late reply. Assuming you already figured this out but yes the sealed pillar needs to be summoned in the abyss as that's where it would naturally spawn. Using the tower taro card outside the abyss wont do anything, nor will it consume the card. Once summoned, just beat it up and follow the advice I gave you before. I'd suggest doing this on one of the lower levels where there's more open space to move around.