Seikishi-sama, Sorosoro Watashi o Hanashite Kudasai! ~Youzumi Seijo wa Sodateta Eiyuu ni Shuuchaku Sareru~Holy Knight, Please Let Me Go Already!;

“You came back to pick me up—” The one who said he would let her go… was the child she once thought of as her son…!?As a Saintess protecting the Kingdom of Valesia, Seria was suddenly informed of the annulment of her engagement and the abolition of the Saintess system during a celebratory ceremony. She is cast out of the castle.Now labeled a “useless saint,” Seria has nowhere to go.But then the boy she once saved and raised as her own—who has now grown into a powerful hero—appears before her.“I’ve finally found you.”The overly devoted Holy Knight and the abandoned Saintess begin their second life together.