Maybe 'drain' was the wrong word. Here is what it says"
If a floor drain is not available a kit is available AUDR-1 that automatically pumps the water into a commode, bathtub or commode when showering. When using the above kit the shower stall opening is 5.50 inches above the floor. .
I don't think I could connect a shower to the plumbing by myself. I'm not handy with home improvement at all, and I may need approval from the landlord