Do you have a link for the novel please?
https://www.novelupdates.com/series/nurturing-the-hero-to-avoid-death/
Just make an account, its free, and you’ll be able to read it+bookmark your chapters and get updated when new ones come out
Also tip for finding novels try searching the mangas name+novel and it should pop up. So for this one you’d look up “im going to raise a hero novel” and then maybe add bl or yaoi to it. So “im going to raise a hero yaoi novel” and if theres a novel updates link try that one first if not any other. Sometimes if you look up mtl you’ll get the machine translated one and those typically have all the chapters. Another website to try is mtlnovel.
Oh I didn't recognize that I read the novel before because I'm way too used to the novel art, so I didn't recognize it through the manga art, and it's been ages since I last read the novel. I really enjoyed reading the novel, it was really cute, and can't I wait for more manga chapters ε=ε=(ノ≧∇≦)ノ