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Tags
Aliens Prominently features extraterrestrial lifeforms.Fellatio Blowjob; features oral sex performed on male genitalia.Flat Chest Features a female character with smaller-than-average breasts.Full Color Manga that were initially published in full color.Inseki Features sexual or romantic relations among step, adopted, and other non-blood related family members.Kyou kara Chikyuujin no Imouto ni Narimashita.
今日から地球人の妹になりました。
A curious alien arrives on Earth with a mission to study human behavior. To blend in, she takes on the form of a little sister and moves in with an unsuspecting young man. She tries to act like a normal human sibling, but her lack of understanding of human customs and emotions leads to awkward and intimate situations.
As she observes his daily life, her scientific curiosity clashes with the complexities of human relationships. The line between research and genuine connection begins to blur, forcing both of them to confront feelings they never expected.
