What makes Saku by Dir En Grey notable?

'Saku' was critically acclaimed, contributing to Dir En Grey's rise in international recognition. The album's experimental nature and heavy themes resonated widely, influencing the Japanese metal scene and garnering attention beyond Japan's borders. By 2004, Dir En Grey was transitioning from their earlier visual kei roots into a more mature sound marked by their album 'Withering to Death'. 'Saku' followed as a pivotal moment in their artistic evolution, showcasing their willingness to experiment with extreme metal influences while maintaining their distinct identity.