I Must Conquer the Witch Immediately

Reborn in a parallel-world Tokyo, Shinohara Makoto only wanted to live a peaceful, uneventful life, until one day he was abducted to an isolated prison island cut off from the world and forced to take part in a brutal supernatural game of Werewolf. The good news: he's been matched with thirteen super-cute girls. The bad news: he seems to be the only ordinary guy on the island who can't use magic. The even worse news: the girls' levels of insanity might be a little too high! Makeshift spears, moving houses with their bare hands, super assembly projects, faking death in the middle of a group... Each girl has a special talent, each has her own unique magic. Gravity and Humility are even more astonishing, and their secret weapon (namely, turning into witches when provoked and clearing the whole screen with a single click) is a surprise you won't forget! "No way! I can't let that happen! I have to find a way to keep them calm..." "Anyway, I'll start with a conquest." And so, his peaceful daily life came crashing down. As they stood before him, glaring with murderous intent and unleashing gravity, Shinohara Makoto was backed into a corner. He swallowed, then once again delivered his supremely confident victory declaration: "...Hee-hee, I'm going to survive no matter what."