Where to continue the That Time I Got Reincarnated as a Slime manga

That Time I Got Reincarnated as a Slime by Fuse & Taiki Kawakami, 2015. The manga is still ongoing.

• Season 1 (24 episodes): Continue the manga from chapter 40 in volume 9. After chapter 39 the season jumps ahead to adapt the arc with Shizu's students early, so a lot of what follows up to chapter 54 will look familiar.
• Season 2 Part 1 (12 episodes): Continue the manga from chapter 71 in volume 16. The finale stops partway into the chapter, so you'll re-read the start.
• Season 2 Part 2 (12 episodes): Continue the manga from chapter 87 in volume 19. The season ends partway through the chapter, so parts of it will look familiar.
• Season 3 (24 episodes): Continue the manga from chapter 119 in volume 27.
• Season 4 Parts 1-2 (24 episodes) The anime has overtaken the manga. The latest chapter only reaches the end of episode 23, so there is nothing new to read yet.

Read the manga: K Manga.