Onnamaou-sama wa Yuusha-kun o Taosenai. - Ch. 21

[Juggernautbob]

Maou successfully sabotaged the hero.... (?)

Indeed. She accidentally prevented him from getting his power-up.

I'm not so sure about that, I feel like the Sage was lying about the spring powering him up, and the real reason for his trip there was so that he would learn to fight even when he's scared.

 

[arizonaant]

Yu protects his mama. Good boy.

More like he protects his future wife.

 

[arizonaant]

Don't care what people say, until the author gives us anything else I will always be in the Demon Lord and Hero becoming a couple camp. I can definitely see them becoming a future couple and have that sexy sage as a mistress.