No balls?

Two heroes had been summoned. 

Both of them were intentional summons.

And they were supposed to go out to train and eventually face the evil that threatened the world!

And yet-

"A bit to the left-" A moan- "Ah- just there-" One of the heroes, instead of going out to the world and exploring, took up refuge in the great palace and began to make a harem out of the most beautiful girls he could find.

In his room- on the west court of the castle- he and a bunch of other girls- all naked- were having massaging fun…

And due to his unique skill, Charm, the girls almost always fawned over him.