Chapter 29 is part of the final arc, as the series concluded with a total of in August 2022.

Much of the series, including this late-stage chapter, focuses on the psychological game between Tsukushi and his sisters. As the title suggests, the "mystery" is often a vehicle for the sisters to "expose" their true, often eccentric or affectionate, feelings toward their brother.

Ryosuke Asakura's (The Shikizaki Sisters Want to Be Exposed) is a comedic harem series that balances lighthearted fanservice with an underlying detective mystery. Chapter 29: Review & Context

Reviewers note that while the premise suggests a dark suspense thriller, the execution is primarily a "high-volume ecchi comedy". The art style has been described as having a unique, slightly unsettling edge that fits the "mystery vs. desire" theme. Reader Consensus

You can read the full series officially on platforms like Tonari no Young Jump .