You're right. The webtoon didn't really showcase the shadow soldier personality, and it is not limited to the high rank ones such as Beru and Igris, even the low rank soldier has great personality. Earlier chapters did shows that some of the shadow infantry even jokes with one another once they have finish fighting, but now, not anymore.. my favourite shadow soldier is Igris..ヾ(☆▽☆)
ikr!! I was waiting for the scene where the ant shadow that monitor Yu Jin Ho dad in the hospital. When the ant shadow saw the chairman lying on the bed, it was actually thinking "what a delicious open buffet this is!!" it was drooling avariciously before being swap with Sung Jin Yu....too bad they change it in the webtoon
Beru is like a King advisor, the kind that remember people's name, nagging the King to always maintain proper conduct and such...