my pet is a saintess:

Experience a Tale of Love and Resilience
Tatsumi's life is shattered by tragedy when he loses his family and beloved cockatiel, Chiko. Struggling to cope, he is unexpectedly summoned to another world, where Chiko awaits him in a surprising new form—as a saintess with plans to make him her fiancé.

As opposition mounts against their union, Tatsumi and Chiko find themselves at the center of a complex plot. Join them on a poignant journey of love and resilience, where they must overcome challenges and adversaries to forge their destiny.