Rebirth as a Shadow Raven

Long time ago Earth was invaded by otherworldly creatures - monsters. The human population was almost decimated and most succumbed to despair. Luckily with monsters came a foreign new Energy, 'Mana'. Humans started to awaken, gaining strength beyond belief and managing to push the monsters back, creating a continent for humans to reside in. Abandoned by his family, betrayed by his friends and killed by the monsters... It was a short yet painful life of Kai Steele, a person who was regarded as one of the weakest humans. However, for some unknown reason his conscience was sent back in time. " Why is it I who gets something so powerful, yet lame? " A new adventure of Kai, the Black Death begins!