How about a fan-shaped window on the front wall of the living room?
Tear down the wall between the second bedroom and the living room and make a glass partition. Choose glass with good light transmission, such as carved glass, and the middle layer is full of broken flowers (I forget the specific name). Fabric curtains are installed in the second bedroom according to the selected glass, which is artistic and solves the lighting problem. If you have more concerns about Feng Shui, you can use decorative paintings to avoid it.