異世界城主、奮闘中！　～ガチャ姫率いて、目指すは最強の軍勢～（旧題ガチャ姫） (Associated Names)

Yuusaku Kaji was playing a game on his smartphone when he was suddenly sucked into it and got transported into a game world. Then, a dragon that claimed to be god told him, “I will grant you a territory and a castle, so become the king and create the strongest army”. Yuusaku became the lord…