Help! the Yandere School Beauty I Took in Is Getting More and More Sticky

[Yandering school beauty + daily life of living together + single female protagonist + two-way redemption + high sugar sweet pet] Gu Yanchuan is famous as the top grader in the school. With good grades and a calm personality, everything he does seems to have been calculated in advance. Even the matter of living is regarded by him as an observation experiment that can be terminated at any time. Until one rainy night, he bumped into Xu Zhining, who was covered in injuries. She was a gentle and well-behaved school beauty in everyone's eyes, but after he took her home, she gradually revealed her true appearance hidden under her smile. She would secretly record his itinerary, drive away girls who tried to get close to him, sleep with his clothes on his arms, and stand by his bed late at night, asking with red eyes: "You saved me, why do you want to leave me?" Gu Yanchuan originally thought that he had just taken in a homeless girl temporarily. Later he discovered that what Xu Zhaning really wanted was never a place to live. But his time, eyes, future, and all the proof that he will not leave her for the rest of his life. Everyone thought that it was Gu Yanchuan who saved the yandere school beauty. Only he knows—— On those nights when she least wanted to live, she hugged him tightly again and again and told him paranoidly and seriously: "Your life is mine." "You are not allowed to die without my permission."