The message passing between Yan Yu and Li Minghu was partly his heartfelt words, while the other part was to inspire her to have a strong will to survive, specifically to give her a boost.
Of course, while he said "you will definitely survive," in reality, whether the Valkyrie can survive or not is not something Yan Yu can dictate.
In the memories of the previous life, there were indeed some secret elixirs that could revitalize the body, but they mostly emerged in the mid to late stages when the Spiritual Energy cap was at the Golden Core Realm, which is after the time when the Valkyrie had already passed away, so whether these elixirs can be effective on her is actually not historically verified.
Of course, although Yan Yu has little confidence in the drugs, he is full of confidence in Mr. Mei.
Mr. Mei is a woman who could turn the tide on her own! In the previous life, if it weren't for her being the cornerstone of the country, it would have perished long ago!
