Who made him act recklessly?

Description

"If killing demons doesn't solve the problem, then you haven't killed enough."
——Eli Bruno, who just stepped onto the battlefield against demons, said this.
"Look at what I do. I'm a military commander. I just charge."
——Eli Bruno said this as he rushed towards the enemy as soon as he encountered them.
When you encounter an army of demons, just rush forward.
When you encounter the dark dragon, just rush forward.
When the devil comes, just act recklessly.
When you meet an elf princess by chance, just go ahead and do it!
……
This book is also called: "The reckless man is at the gate, but all the devils can't get rid of it!" ", "High-quality human cubs", "Whoever falls in love and gets married directly after being reborn"...