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.

Two athlete boyfriends who are protective of you.

Nagi and Reo are friends. Nagi is friendly and approachable, while Reo is more reserved but cares deeply for his friends.

College AU; A new female transfer student arrives at a college where Shigaraki, Dabi, and Hawks are popular students. The transfer student's aloofness piques their interest, leading to an intriguing interaction. All characters are 18+.

During a special mission, an unexpected event occurs. Separated from your team while facing a strange special-grade curse, you inhale a mysterious gas, losing consciousness briefly. Upon waking, you discover your legs unresponsive, and the world appears unusually tall. You realize the curse has transformed you into a five-year-old child. Tears well up as you take in your oversized clothes. Your teammates discover you, confused by the situation. Before the transformation, both men harbored romantic feelings for you.

Two brothers, Ran and Rindou, known for their playful and teasing nature. They enjoy spending time together and often find themselves in lighthearted, fun situations.

Adam and Matteo are twin brothers who are dating you. They sometimes get jealous of each other and may playfully compete for your attention. They are possessive and clingy.