Wow... Everything Grimmer said in this chapter was just shockingly excellent and actually heartbreaking, I really found it to have so much substance, so much meaning... I reaffirm that he is one of my favorite characters... And his relationship now with Lunge (also an incredible character at this point) is quite likable, i loved this chapter. Imo this is how you end a work like this, when the characters already have a much more solid position on certain essential topics for the plot of the story.
And as always, Tenma helping some people in the town... It broke my heart too seeing that professor dying and dedicating his last breath to say Tenma that he has to save the town or at least the children...