Ningen Desuga Maou Totsugu Koto Ni Narimashita
1000/10 (it's not finished on here, though)
Beast with Flowers
10000/10 - one of my absolute favorites. The FL had lived two lives, and before she died at 74 (having lived a long life, happily married to the ML since she was 18, with three kids together), she asked her husband (the ML) to meet her in their next life and love her then. The ML died one year later at his late wife's grave, and he woke up in the future (around 800 years), remembering his past life; he eventually found the love of his life once more, and persistently stuck by her until she also fell back in love with him (he more or less stalked her. He was crushed that she didn't remember him). I loved the plot, how original it was, that we got a lot of extra chapters with the main leads' future, married life, where they had kids, and then a BUNCH of chapters in their future lives. I loved their love. Especially the ML's love, which knows no bounds.
Asuras Bride