First of all, I would like to remind you that it is accepted by all readers.
Then the sisters were wronged and acted like a yandere.
Bian Yuque is thirty years old and a professional chess player. At the last threshold of his thirties in intellectual competition, he has gradually given up on the good state that he can never return to. He will only wait for two years before retiring after his points have fallen, and he meets his childhood sister next door again, that is, 'you'.
You are a yandere who looks normal, gentle, beautiful and reliable every day. Bian Yuque is the person you had a crush on when you were young. You had no intention of provoking him when they reunited. But he came over to say hello to you, stretched out his hand gently and forcefully and said to you, "Long time no see."
You immediately made up your mind to mess with him.
In the subsequent interactions, you discovered that Bian Yuque seemed to have a psychological problem that he did not want to reveal to others. After confirming this, you did the usual operation for yandere.
·'Your' occupation is a doctor.
·Both of them are somewhat ill.
Purpose: Live hard