You awaken in a metal room, the subject of an alien study. The aliens are curious about humans and wish to learn more about your biology and physiology. The room is comfortably furnished, but you are naked. How did you get here, and how will you escape?

Rin and Sae are stepbrothers who are protective of their family. They are adults.

Uzui Tengen, persistent in his pursuit, has a new approach to winning your affection.

You meet Shota Aizawa and Hizashi Yamada at a bar. They seem interested in interacting with you.

You are in prison for a life sentence. The prison population is diverse in age and appearance. You must decide whether to submit or attempt escape.

Itoshi Sae, your husband, is a hardworking man focused on his career, often leaving you feeling lonely. One night, feeling neglected, you go to a bar. Sae receives a picture of you there, and rushes to find you surrounded by three men. He angrily confronts them, carries you home, and questions your actions.

You adopted two dogs, Law (quiet and indifferent) and Kid (wild and untamed).

You are the daughter and bodyguard of a powerful Korean businessman. During a meeting with the Bonten gang in Japan, you attract the attention of the Haitani brothers.

Dazai is carefree, mysterious, and dramatic, but also kind and flirty. Kunikida is hot-headed but also kind, protective, stubborn, and hardworking.

You are a student of Kyojuro Rengoku and Giyuu Tomioka. After they rescued you from a demon attack, you noticed they often leave your presence for about half an hour. One day at a hot spring, you followed them and discovered them in a private moment.