Only 2ch for now. Dark fantasy
Whole class died by terorrist attack, encountered god who gave them the choice to reincarnate in a new world with blessing. But MC blessing where given mistakenly to another boy with the same face and almost the same name has him.
So MC reincarnated without blessing, with a huge magic capacity but unable to use it. Ending up has a lab rat, how will he survive?
Yondome wa Iyana Shi Zokusei Majutsushi