夜桜さんちの大作戦 2nd Season Part 2

Taiyo Asano lost his family and has leaned on his childhood friend Mutsumi Yozakura ever since, never suspecting her household runs a clan of spies. Her eldest brother Kyoichiro wants him dead for getting close to her, and the clan's one unbreakable rule, no killing among family, leaves marriage as the way out. Taiyo weds Mutsumi and starts spy training himself. This continuation follows the Yozakura household deeper into its missions.