Confessed Love, and Then Was Picked up and Taken Home by the Yandere Sister

[Single female protagonist + yandere + pure love + high sweetness without swords] After his confession to class beauty Su Han failed and was rejected, the goddess in red descended from the sky and took Gu Ruoxu away from the embarrassment. But why does the goddess in red look more and more like the person Gu Ruoxu likes? Gu Ruoxu kissed her while drunk? The two solved their misunderstanding, and just as their relationship was getting closer, Gu Ruoxu discovered Lin Xiran's unknown secret. The person he likes is actually a yandere? And even imprisoned him? Be content with the status quo and accept your own 'love'? Or ask Uncle Hat for help? This is a multiple choice question. However, it was Gu Ruoxu himself who was the first to become strange?