100 Days Left Until You Die(2023)

100 Days Left Until You Die is an anime series following Tsuda Rintaro, a high school student cursed with the ability to predict how long living things will survive. Plagued by this power since childhood, he's learned to live with the burden of watching those around him approach their end without intervention. His carefully constructed isolation shatters when he discovers that Kanzaki Umi, his childhood friend who harbors romantic feelings for him, has fewer than 100 days left to live. The revelation forces Rintaro to confront the weight of his gift and decide whether to spend their remaining time together or continue his pattern of detached observation. The series explores themes of mortality, connection, and the impossible choices that come when the future is written in stone.