tsukumo ima, tsukumo kako, the hundred line -last defense academy-, spoilers, 1boy, 2girls, black headband, blood, blood from mouth, brother and sister, closed eyes, double bun, ear piercing, hair bun, headband, korean text, last defense academy school uniform, multiple girls, piercing, pink background, pink hair, prologue (hundred line), purple hair, qndsi111, school uniform, siblings, sick, sparkle background, szanshin, twins