Raped in front of her husband's eyes - Reunion is the beginning of doom IV

It's been 10 years since Eri and Yoji got married to work. One night, my husband brings home Saeki, whom I've been working for at the same time. Saeki, who was transferred to the Kyushu branch, is said to be returning to work at the head office. Eri, who was once Saeki's subordinate, is happy to be reunited with him after a long time...