Romantic love that arises between two elderly or senior characters. If mortality or mental illness is a theme, this is a sure recipe for tear jerkers aplenty. However, it can also be used optimistically, as proof that there's no age limit on love. In that case, it frequently turns into a Crowning Moment of Heartwarming. Compare May-December Romance and Grow Old with Me. Often overlaps with New Old Flame, if the two characters were lovers earlier in life but quarrelled or grew apart. The opposite of Toy Ship, in which two unusually young characters have a romance -- although in the New Old Flame case, the same pair of characters may have been both.