  We propose a model with multiple qubits that reproduces the thermal
properties of 4-dimensional (4-dim) Schwarzschild black holes (BHs) by
simultaneously taking account of the emission of Hawking particles and the
zero-energy soft hair evaporation at horizon. The results verify that the
entanglement entropy between a qubit and other subsystems, including emitted
radiation, is much larger than the BH entropy analogue of the qubit, as opposed
to the Page curve prediction. Our result suggests that early Hawking radiation
is entangled with soft hair, and that late Hawking radiation can be highly
entangled with the degrees of freedom of BH, avoiding the emergence of a
firewall at the horizon.
