1: Download EasyRPG Player
(copy this link into your browser or search for it online)
https://easyrpg.org/player/guide/

2: Download and extract the zip folder
You should see the EasyRPG Player inside of the folder. Ignore it for now, but keep that window open and create a separate file explorer window.

3: In the new window, go to C:\Program Files (x86)\Steam\steamapps\common\LISA The First\Lisa_1
Inside the Lisa_1 folder, there should be another folder called Lisa_1 (you aren't crazy they have the same name). You will need the one that is inside the other one for the next step.

4: Drag the second Lisa_1 folder onto the EasyRPG Player app in the other window.
Just drag the folder directly into the application. It should say "Open with EasyRPG Player" near your cursor as you hover over the app while dragging the folder. Let go of the folder and it should open the player. If not, manually open it.

5: Start the game
Inside the player, you should be able to immediately select "Lisa_1." Press the select button (it is likely Enter or Z) and the game will start.

6: Yeah
It's a game
Enjoy???

*You can also use EasyRPG Player to run most rpgmaker games made between 2000 and 2003. The about section of the player will provide more details.