I must say, the tonal shift in this anime is excellent. From silly, over-the-top scenes, we're suddenly plunged into a tremendous tragedy with more realistic conflicts (let's ignore the giant tree destroying the city), painful losses, and emotional acts of trust. This ending is moving; it brought tears to my eyes, and the resolution, however naive, truly feels heartwarming. The sacrifices hit hard, and Himeno's ability to grow stronger when all seemed lost doesn't feel like a sudden, unsupported power boost. The ending is beautiful and warm, and it feels gratifying that after all the suffering, the characters finally find peace.