The Ecstasy Powder was not a poison, but an illusion-creating shot!
This powder was actually mostly used for recuperation purposes. Its main use was to help the user forget the pain of their wounds. Users would enter a state of hallucination. Many young gentlemen also loved to use Ecstasy Powder to create illusions. This helped them to escape the troubles of reality and allow them to feel happy while alone in the illusion zone.
Jiang Yi was a very careful person. He always kept his thoughts in order. Luo Qingyan dared not employ any other means. If he found out what she was up to, she would die for sure. This Ecstasy Powder was not poisonous at all, and it was fragrant. On the surface, it felt like it could nourish one's soul. This ensured that Jiang Yi did not get suspicious.