Toriko no Kusari - Season 1

Yunoki Mio, a student council president distinguished in both studies and athletics, leads a contented life at her demanding school. She spends her days with childhood friend Ayukawa Rinka, her cousin Ikoma Yui, and Asahina Konomi, a fellow council member who looks up to her. With her parents frequently abroad for work, the family's live-in helper, Toya Shiori, provides companionship; the two share a close, familial bond. This fulfilling routine is suddenly disrupted when Mio encounters an unforeseen calamity.