oops sorry that i'm two days late but to answer your question, a good starting point is chapter 40.
while episode twelve of the anime adapts chapters 39-42, it cuts out lots of scenes from a different perspective, so starting at 40 and reading from there is your best bet
- Maora5 years ago
@Brobot500. Hey. I removed the piracy site link from your comment.
Discussing, linking or guiding others to illicit copyrighted content is prohibited. This includes streaming websites/apps, torrents, direct downloads etc.
- Brobot5005 years ago
aw shoot, I didn't know that was a guideline. my apologies.