TENKAWA IS INVINCIBLE
TENKAWA IS INEXORABLE
Hime in alien gangrape prison doujin when?
I can't get over how stupid MC's arm armor is. What in the world does that have to do with gravity?
Also is it just me or do most of these seiyuus sound incredibly amateurish? Especially red-head imouto
Well it probably hides the reality of what's going on. I'm betting that the barrier doesn't actually prevent the enemy from getting in, but rather prevents the enemy from sensing everyone. The red spark that happens to their chip isn't actually setting them to be tracked, but is rather breaking it, revealing the students to the enemy.