Wait... so they are going with the fan fic story line after chapt 46? Or author is hired by the manga publisher to continue working on the story. Because this reads like the fan fic continuation.
If he can synthesize meth in medieval Japan without precursor chemicals or high quality modern lab equipment, then he's a better chemist than Walter White. Hell, he's more than 10 Walter White combined.
There are plenty of plants and mushrooms that are psychedelic and far more believable than...
This is a bad series, essentially repackaged the history of Oda Nobunaga in an isekai shell that makes very little sense. All the battles and strategies were taken from Oda's historical approach, but done badly. Glad it is cancelled.
The next update is going to be at least a year. Last book came out early 2023, and it's annual publishing.
This series is really odd, two publishers using the same source material, different artist. Both scanlations, at least in english, are more than 20 chapters behind.