Ore no Imouto Maker Ex Portable (Japan) - PSP - Simulation

This is a minigame that comes with the Ore no Imouto ga Konnani Kawaii Wake ga Nai Portable visual novel. The game starts with Kyousuke talking about how he''s normal then suddenly waking up to find five girls sleeping with him. He then gets told that these girls are his step sisters and that his parents are on vacation. Kyousuke''s goal in this game is to get closer to his new sisters. Each has their own short route.