
I suddenly have the urge to protect christoph with all my might

Don't worry that is a totally normal medical condition and is just a part of the learning-why-we-should-pity-a-character process also known as sad story ex machina syndrome. Many others feel the exact same as you and you can find company in those who suffer from the same condition. It is just a normal trope and the feelings should either subside or linger depending on the effectiveness of the author! Though in most cases it should clear up in about three to four chapters after the backstory focused chapters and the best way to seek relief while you wait is an egregious amount of vodka or fapping mercilessly to other fictional characters. I hope that helps!
Yours truely, Doctor Bullshittery.
and that my child is how I met your mother
I AM SCREECHING