Yes, it is quite popular among certain groups. It combines elements of fantasy and adventure which attract a lot of readers. The unique concept of potion making and the characters involved in the story make it an interesting read.
One of the main themes is obviously potion making. It delves deep into the art, science, and magic behind creating potions. Another theme is self - discovery. The characters often learn about their own capabilities and limitations through their experiences in potion making.
Here are some novel recommendations about the protagonist strengthening potion:
1. [Fate Changing Alchemist]
2. "The dandy Marquis: Supreme Soul Cultivator."
3. Super Gene
4. " Reborn, I want to be a study god."
5. [Extraordinary Potion Master]
6. "The World of Beast Pets, All-rounded Summoner"
7. [The Foppish Medical Concubine: The Useless Fifth Miss]
8. Vivian
9. " Full-time Mage: Starting from the Pharmacist's Attack on the Goddess."
These novels all have the plot of the protagonist's strengthening drug, which can satisfy your reading needs.
I recommend " My Wife Has Arrived, President, Please Sign For It " to you. The female protagonist of this novel is also a designated driver, but she not only deliver goods but also does some odd jobs sometimes. She opened a cake shop with her friend, but later she met the male lead, and there was a long love story between the two of them. I hope you will like this novel.
Obviously Merlin himself could be affected. He's the one with the magic and might accidentally expose himself to the potion. Arthur is also a likely candidate. As the king, if he's affected by the love potion, it would have a huge impact on Camelot. Morgana could also be a character affected. If she were under the influence of a love potion, it could change her plans and her relationships with other characters. And Guinevere too, since she has important relationships in Camelot that could be altered by the potion.