Betrayed by the Hero, I Formed a MILF Party with His Mom! (Manga)

Ceres thought his life was over after being abruptly kicked out of the Hero's party by the arrogant Hero Zect. Alone and dejected, he stumbles upon an unusual slave market, where he finds none other than the Hero's own mother, Shizuko! Ceres has a thing for older women, and realizes that this is his chance to achieve a lifelong dream: Assembling a harem of MILFs!