フラれた後、俺は返還システムで逆転したII

Kane, a paleontology genius with the Rebate System, is targeted by Brand, who is jealous because he can't win Anna's love. After Kane exposes a composite fossil at the museum and humiliates Brand, Brand secretly sends photos of Kane and the three girls to their parents, trying to break them apart. Now, their parents gather at Blackstone Ranch, and Kane's biggest challenge is about to begin...