Wrap the tofu in a paper towel to remove excess moisture.
Blend the tofu, cream cheese, and honey in a mixer until smooth.
Mix sugar into the espresso.
Cut castella or sponge cake into bite-sized pieces.
Lightly soak the cake pieces in the espresso.
Layer the cake and tofu cream alternately in a container.
Sprinkle cocoa powder on top.
Refrigerate for at least 1 hour before serving.