Wash and cook kidney beans (red beans) to make red bean paste.
Mix flour, yeast, sugar, salt, milk, and butter to make the dough.
Let the dough rise for the first fermentation.
Divide and shape the dough into round balls.
Wrap the dough around the red bean paste to seal it.
Place the shaped red bean bread on a baking tray.
Let the dough rise for the second fermentation.
Bake in a 180°C oven for 15 minutes.
Cool before serving.