Reincarnated as Tom Cat, Summoned by a Good-for-Nothing Saintess?

Reborn in Tom and Jerry as the unluckiest Tom Cat! After chasing mice for ten years and mastering the art of taking a beating, he gets summoned as the familiar of a defrocked saintess! His potential is rated at the lowest level, F-rank [Common Beast]. Everyone thinks he's a pet cat with no combat ability and nothing going for him except his handsome looks and piano skills. Lin Xiu: “...Isn't it normal for Tom Cat to have no magic? I'm all about physics and cartoon logic!” Seraphina was once the brightest saintess of the Church of Light, beloved by the gods! But during her awakening ceremony, her best friend and fiancé betrayed her, accusing her of colluding with demons. Her divine power was stripped away, and she became the “Fallen Saintess,” despised by all. On the brink of death, she used the last of her holy light to perform an ancient summoning ritual, begging the gods to grant her an agent of vengeance! “...What is this blue-gray house cat with an F-rank rating? Have even the gods abandoned me?” And then... “Your body was crushed flat like a sheet of paper by a dragon! How did you recover the very next second?!” “Standard procedure. It's called ‘shape reconstruction.’” “You pulled a giant iron hammer out from behind your back and smashed the Demon Lord into the ground?!” “...Don't make such a fuss. It's called a ‘four-dimensional pocket.’” “So you're saying... you casually drew a black hole just now and redirected the enemy's forbidden spell?” “What? I don't see what's so hard about that!” Seraphina looked at the all-powerful cat before her, her cold gaze gradually turning feverish. “What an interesting pet. You're the last miracle the gods have granted me. Your body, your abilities, everything you have... will be the blade of my revenge, mine alone!”