Preheat the oven to 350°F (175°C). Grease and flour the baking pan.

In a mixing bowl, whisk together the dry ingredients: flour, baking powder, matcha powder, and sugar.

In another bowl, cream the butter and sugar until light and fluffy. Add eggs one at a time, mixing well after each addition.

Gradually add the dry ingredients to the wet mixture, alternating with milk. Fold in the diced kiwi.

Pour the batter into the prepared baking pan and smooth the top.

Bake for 25-30 minutes or until a toothpick inserted in the center comes out clean.

Allow the cake to cool in the pan for 10 minutes before transferring to a wire rack to cool completely.