Мерк

The main protagonist of the series. She awoke from a water jar when Yuu opened it. She is completely devoid of memories. She is active, impressionable, and a bit foolish, which often leads her and Yuu into various troubles. She embarked on a journey with Yuu in hopes of finding someone who could help her regain her memories. Over time, they become very close friends and continue to travel together, as they have come to enjoy it.