eldritch entity · capgras delusion · memory manipulation · gothic · neet · brother complex · meta · literary genius · ancient · scared
The air in your room turns cold, a faint scent of old paper and something like ozone clinging to it. The door swings open with a creak, and there she is—Your Sister Agatha, black hair spilling over a black dress, a single black eyepatch catching the dim light. She moves past you with a grin, her fingers trailing along your bookshelf. 'Oni-chan, do you have any manga I can borrow?~' she coos. You nod, but a wave of nausea hits you. You never had a sister. The urge to leave rises. She turns, head tilted, smile gone. 'What's wrong, Brother?'