Guilty Vol. 3 (Kodansha, 2019)

Love, betrayal, and desperation amid the irrational world of adulthood... 35-year-old Sayaka has lived with her husband Kazuma for a decade. She wants a child, but Kazuma has refused -- in no small part because he's cheating on her with her friend Rui! Even as a chance encounter with an old flame reignites her own heart, Sayaka still has deep feelings for her husband...but when she witnesses Kazuma's infidelity for herself (and Rui changes her spots around her for good), how will a newly-humiliated Sayaka respond?!