Naruto

Naruto Uzumaki was very excited to try out this new creation of his.

The creation he is testing is an experimental summoning seal he had developed and made by himself from scratch. It is designed to bring people to his location. Because it was a summoning there was a very high possibility that it may not work as he intended it and may bring something that is potentially dangerous.

To rectify this he added an enslavement seal to it that would activate just in case whoever he did manage to summon was hostile and not of this world. That way he would be able to bind that person, or creature, to him and with the mindset of him being their master, and the thought of hurting him was almost unthinkable is engraved in their psyche.

There was also a threat level detection seal as well. It would glow four different colours. The colour white is to help him identify someone who is peaceful and incapable of hurting anyone in his world. Dark blue is to identify someone who is peaceful but is potentially dangerous. Light red would tell Naruto the person being summoned is powerful and potentially hostile. Dark red would tell him the individual is powerful, hostile and very dangerous to anyone around them.

The light red and dark red are the colours Naruto has to look out for, as they point out the potentiality dangerous, and dangerous people capable of hurting people in his world.

…In theory.