Can't remember much but can't sleep now it's on my mind lol Anyways mc remembers that on earth during world war penacillin was very helpful so he created it in his shops in other world not too long as the king wanted to monopolise it from him so he released the secrets sayings his father or grandfather wanted to release it to the public... but it's all lies to keep mc alive. Uhhh his family has be felled tradegy and mc is fallen nobility with no support except for a girl who was working to earn money for them both i think
heyyy. i kind of know. but forgot. its not Immortal Mortal i'm sure. i think it was a jp novel or RRL
It's was cn if i'm not wrong and the mc previous body owner was in deppresion so the maid paid a bunch of kid to call him a king
Immortal Mortal. Its on early chapters. The girl got kidnapped by some xultivator so he join some pharmacy and create penicilin. Around c8 to c20
Yeh my bad you guys are right lol, I was looking at the wrong immortal title.... there immortal and Immortal Mortal... also immortality... cheers guys lol didn't think I described enough but you guys mean business lol