Sister Princess
Promised Island Arrival
E1–8 · —Wataru reaches a strange island and meets twelve very enthusiastic sisters.
Summer Sisterhood
E9–18 · —Summer adventures give each sister precious time with their new brother.
Farewell Premonition
E19–26 · —A visitor from Tokyo threatens Wataru's peaceful island family.
Tap a bar to crack open its episode · a chapter band to warp to it · ✓ marks you’ve made it that far · ▶ blasts the theme.