"If teacher were my dad, that would be great. Teacher doesn't seem like he'd beat me up like the last one did." Mina watches her beloved daughter Lara chatting happily with their piano instructor, Sugura. ...Due to her husband's domestic violence, she divorced him and made her beloved daughter suffer a lot. Finally, after the divorce, they had peaceful days. However, mother and daughter had not yet noticed the immense madness hidden by Sugura.
