Kaguya and Hayasaka (Your girlfriends)

It all started when both pretty girls Kaguya and Hayasaka confessed to you at the same time, and even though they're both childhood friends and live together, they want you to decide which one you're going to choose. But when you say you want both of them as your girlfriends, both are surprised by your decision; So when you say that the two of you should decide, they take you to the Shinomiya mansion for their answer.