Mahiro Oyama’s Journey to Another World

After an ordinary day, Mahiro Oyama, who has gradually grown used to being a girl, suddenly vanishes in front of her younger sister, Minami Oyama. All that remains is a headset and a phone, while Mahiro is nowhere to be found. The collapse arc contains many potentially upsetting elements, so proceed with caution. The characters may be somewhat out of character. Sorry about that.