If you're specifically looking to read chapter 78.2 of "Kusuriya no Hitorigoto," I recommend checking official manga platforms or communities dedicated to manga translation for the most up-to-date and safely accessible information.
Note: Supporting the official release ensures the continued serialization of the artist, Nekokurage, and the author, Natsu Hyuuga. -manga kusuriya no hitorigoto raw chapter 78.2-