Te Amare Por Siempre Dorama [2021]

No list about eternal love in J-dramas is complete without this masterpiece. Based on a true story, it follows Aya, a teenage girl diagnosed with spinocerebellar degeneration (a degenerative neurological disease). Her boyfriend, Haruto, stays by her side as she loses the ability to walk, speak, and eventually live.

While technically an anime/manga, the live-action movies and adaptations are popular in the dorama community. The title translates to "From Me to You," but the sentiment of everlasting devotion is a core theme. te amare por siempre dorama