Complex sentence: Back in the real world, Lilulu describes that she is having an inner conflict with herself and doesn't know what she wants, so she willingly lets Doraemon lock her up in a bird cage using the Small Light.
Split into simpler sentences: Back in the real world, Lilulu reveals that she is having an inner conflict with herself and doesn't know what she wants. She willingly lets Doraemon lock her up in a birdcage using the Small Light.