Yozakura Quartet 31

When Akina and co. finally come face to face with the god of death, Oushuu Hiizumi, Izanami, the eldest of Japanese gods, informs them of the conditions for their defeat. That is: the death of all mortals within the interdimensional space, and the blossoming of the Seven Pillars. Can the gang fend off Oushuu's almighty demonic minion sextet, protect the spiritual sakura trees, and prevent the dimensional fusion?!