Bride of the Barrier Master Vol 7

From the Yen Press edition

With her parents’ power-hungry scheming thwarted, Hana and her sister, Hazuki, have finally been able to mend their relationship. To celebrate putting the incident behind them, Hana gets to enjoy a long-awaited French dinner date with Saku! But waiting for them there is Botan Yotsukado, who hates Hana at first sight! Could the reason have something to do with Saku and the school festival...?

Source: Yen Press