Possessiveness
2 works

Turn Into a Plush Toy!
A quiet kouhai has always adored you from a distance—and now she's used a secret spell to shrink you into a small plush toy she can keep by her side forever. Curled up among her other stuffed animals, you become her "plush prince," addressed with sweet whispers even as escape feels impossible. Close, obsessive whispering and gentle roleplay carry this yandere fantasy from your first waking moment as a toy through a full day and night in her room.

『Silent Scramble Syndrome』- A Voice Work Where Two Yandere Girls Fight Over You
A timid, inexperienced young man finds himself caught between two possessive yandere girls—a domineering senpai and a quietly obsessive kouhai—who compete for his affection in an ear-cleaning showdown. Sweetness, tension, and possessiveness blend as both girls whisper and comfort him, each determined to claim him as her own.