Giri Giri Sisters

This collection of short manga stories features the titular lead story, "Giri Giri Sisters," alongside several romantic and dramatic tales originally published in various adult manga magazines between 2005 and 2007. In the primary narrative, Mion harbors a crush on her classmate, Tsukasa. By a surprising turn of events, Tsukasa becomes her stepbrother when their parents marry. While their parents are away on their honeymoon, Mion and her younger sister Kotone—who also appears infatuated with their new stepbrother—are left alone in the house with him. As they navigate this unexpected domestic situation, complications arise when another girl from school begins to show romantic interest in Tsukasa. The volume also includes several standalone stories: "Sakura Zensen Joushou-chuu!," which follows a privileged transfer student and her maid; "HINA Project," about a young man who receives a surprise visit from his idol older sister; "Rihabiri Byoutou 24-ji," set in a hospital ward; "Hokenshitsu de…," revolving around a compromised school nurse; and "Step Up," which explores a high school student's affection for his university-aged home tutor.