you can't it's impossible
not
impossible
You can't
No, it is not possible.
Beat The Elite 4
The walk through walls Gameshark code for Pokemon Red is 010138CD
To walk through walls, enter the cheat code "7881A409 E2026E0C 8E883EFF 92E9660D" into your emulator.
If you have a r4 with Pokemon diamond on it click on cheat y look walk anywhere then walk through all the walls
Walk Through Walls0108A3CE 0108A4CE0108A5CE0108A6CE
Walk Through Walls0108A3CE0108A4CE0108A5CE0108A6CE
The Walk through walls code for Gameshark is "010138CD". If you don't have a Gameshark but still wants to walk through walls, check the related link.
There is no way to get through the maids without walk/run through walls, then you should be able to get in.