B6 Comics I heard that my lovely sister-in-law's engagement has been broken, so I'm now coming to thank you. (4) / Shiori Sakurai Regina Comics

Product description ※Please note that product information is not in full comprehensive meaning because of the machine translation.

The Principality of Sievert, which has become independent from the Kingdom of Mimani and is steadily consolidating its foundation as a country. One day, there is a rumor that a family of Marquis got a rare jewel under Law Zeria. If you hear the details, the characteristics of the jewel match with the national treasure of the Kingdom of Mimani! When Law Zeria, who smelled the smell of the incident, launched an investigation, the situation rolled in an unexpected direction. The drama of the howling waves that finally crumble down the rotten kingdom, Volume 4!