The town is located next to a beautiful lake, with a clock tower built at the town square facing the shores. The bell of the clock tower, known as the Bell of Oblivion, has the power to erase the bad memories and aggressive behavior within the townspeople's minds upon ringing. However, the bell also erases even important memories from the townsfolk, who began to believe that forgetting is the key to happiness. Lostime is governed by Mayor Gale, who wishes for everyone to live happily and has done everything he can to ensure life could go on without conflicts in the town. However, there are individuals who oppose such a belief, such as Shirma and her aunt Stella, who live faraway at the outskirts of Lostime.