"That's why I consume poison."

She had been telling herself it was merely a matter of slightly lower priority. But when she realized the cause behind it, anger took hold of her. Even if they were family, if she was going to be disregarded, she wanted to leave them. The protagonist, who wants to distance herself from her family even at the cost of hurting herself, has a backward kind of positivity. Please be cautious if this is difficult for you. The character "喰" in the title is intentionally used as written here.