[First encounter and alienation → falling in love + male protagonist's possessiveness + younger brother's illness + two-way heartbeat pull + sweet doting and pure love]
(The male protagonist who is cold and slow to warm up in the early stage and is paranoid and domineering in the later period VS the female protagonist who is independent, tough and insecure; the pathological nurse sister has a very possessive brother)
When he first met Pei Yichen, he was just a stranger who accidentally entered the store to look for books. He had only helped her advance money once in a convenience store when she was in distress. His attitude was indifferent and distant, and he never cared about her.
Later, when they met again and again and crossed paths in life, Pei Yichen gradually saw how independent and strong she was in everything, and couldn't help but take the initiative to help her out again and again. Unknowingly, this sympathy slowly fermented into an uncontrollable concern.
But after confirming the relationship, the restrained care in the past completely turned into a strong desire for exclusivity. Pei Yichen wanted to trap her in his own world and not allow anyone to take away any of her attention. What's even more troublesome is that the heroine's biological brother, who has been dependent on each other since childhood, has only longed for his sister to be alone for him. He is extremely repelled by Pei Yichen for stealing her sister's care. He targets the hero everywhere, and a tug-of-war for dual possession of the heroine begins.
Pei Yichen grabbed her wrist and said in a low voice, "Mo Mo, you can only be mine."
The younger brother stood between the two of them, his eyes wary and stubborn: "Sister, I can only stay with me, no one can take her away."
