Despite its name, it is not worn by Shena.
Your best chance of getting it is to visit higher-level Party Time! quests and read scrolls of oracle when a good number of nobles are present. Once you confirmed the presence of the item, you can set about to kill nobles to try to find it. (Careful, the nobles in the Party Time! quests are a lot more powerful than the Palmia versions.)
|It weighs 0.2s|
|It is made of silk.|
|It is precious.|
|It can be wielded as a weapon. (1d47 Pierce 5%)|
|It modifies hit bonus by 7 and damage bonus by 4.|
|It deals mind damage. [#####+] (+1200)|
|It grants your resistance to mind. [#] (+25)|
|It increases your Charisma by 10.|
|It prevents aliens from entering your body.|
|It occasionally stops time. [#####+][4 Turns]|
|It protects you from Etherwind.|
|Note: attributes may vary depending on luck.|
|Panties that were worn by Shena.
A pretty and clean pair of panties with a small ribbon on the front. Someone other than the owner often possesses it, a fact that supposedly only Shena herself doesn't realize.
～Report of Weisem The Informer～
"When I visited the coal mining town, I fell in love. I didn't have the courage to speak to her though, but instead made a request to a famous thief and obtained this. Now she's with me wherever I go. How's that? Bet you're jealous!"
～Last Words of Rastar, A Noble～
shenawill create <Shena's Panty>; this will only work in wizard mode.
The <Shena's Panty> is located at item number 630. It is tinted red (color 3).