Bride of the Barrier Master, Vol. 5 (manga)

Thanks to Hana, Hazuki has freed herself from her wicked parents and is now moving in to the Ichinomiya estate. While Hana is delighted to have her twin sister back, Saku’s brother, Nozomu, seems a bit flustered. Could something be brewing between him and Hazuki? Unfortunately, their peaceful days are cut short when a powerful practitioner named Yukizasa Sankourou assaults Hana in broad daylight, demanding that she divorce Saku! How does Saku know such a dangerous man, and what parts of his own past is he hiding…?