Complex sentence: He travels to Italy to attend his estranged mother's wedding and there he runs into Eun Jae, who had also been seeking the mother, who happens to be a chef, to learn the secrets to making great pasta.
Split into simpler sentences: He travels to Italy to attend his estranged mother's wedding and there he runs into Eun Jae. She had also been seeking the mother, who happens to be a chef, to learn the secrets to making great pasta.