Keiichi and Belldandy's relationship doesn't need explosions or revelation, it survives on the quiet fact that they choose each other, over and over, across decades of storytelling. These three episodes know exactly what they are: a chance to sit with two people who already understand each other completely, watching them navigate the small, genuine complications of loving someone who happens to be a goddess. The 2011 designs refresh what could feel stale, but the real update is remembering that the best romance anime isn't about will-they-won't-they, it's about what happens after both of them already know the answer.
OVAs bundled with volumes 42, 43 & 46 of the Aa! Megami-sama! manga.