Stairs House in Japan - perfect architect solution

Japanese Architectural bureau y + M completes this family home in Japan, with a facade as a ladder to the roof. House and called the "Ladder-House" (Stairs-House). Glass slotted in between steps allow sunlight to penetrate into the house. This house was built for thirty years the couple, which has two twins.

 In this modern house  all  must be contemporary and modern. Not only electronics but paintings and windows. All must be in one  style. Exterior look and interior also