Accidental Transmigration to Another world

*Thaaaaaaaannnnnng* Such a metallic clanging sound was heard the moment Mino collided into the lamp post, smack dab. The violent collision was enough to leave a dent in the post while Mino was sent sprawling backwards. "Ah shit... this is not gonna end well..." A splitting pain in the forehead greeted him. He realised he was bleeding profusely. "Damn... I need help... and quick...." As he was lying down, helpless, a person came forward. Before Mino lost consciousness, he heard a few words accompanied by a warm gentle feel on his forehead. "[Light Conjuration] Heal".... Mino didn't know who saved him or how he was saved, but he knew one thing. The one who healed him definitely didn't belong to earth. And there were more people like him present. Just after that incident, more bizarre happenings started to pop up. All of them had one thing in common. The events were caused by them. Just who are they? And for what reason are they here? Apparently, all of them were not united. Mino got himself and his friends caught up in their enmity, and in an attempt to save his and his friends' lives, got themselves transmigrated to another world. Thus began their journey in the alternate world, to find out a way to home, and the truth of those strange people.