MILGRAM Portal is the official app for the MILGRAM music project, a collaboration between DECO*27 and Takuya Yamagami. This unprecedented project allows users to take on the role of a prison guard in the MILGRAM prison and pass judgment on ten prisoners. The outcome of the story is determined by viewer voting, where users can choose to "forgive" or "not forgive" the prisoners.

The app not only allows users to participate in the voting process but also provides exclusive content for app members, including videos, prisoner profiles, and other member-only features. In addition, there is a premium membership option available for users who want access to even more exclusive content.

Please note that the premium membership comes with a monthly fee of 500 yen or an annual fee of 5,000 yen. Both free and monthly members are eligible for a one-month free trial. The premium membership is automatically renewed unless canceled at least 24 hours before the end of the current period.

MILGRAM Portal offers a unique and immersive experience for fans of the MILGRAM music project, allowing them to be a part of the story and shape its outcome through their votes.