I dont know whats funny about mocking your savior, mc lack of politeness and of course brain.
I dont know what the english is but its like the author too pushy about the joke.
he ain't joking mate... there is nothing funny about it and there is absolutely nothing funny about MC's situation... if that's the reason you gave it only 1,5 stars then I would absolutely recommend you try again. just read the first volume. who knows, you might stick around after that?