Candybar's manga / #terminally I'll(2)

9.2 she is terminally ill, killing her or committing suicide brings her back to one point in the past, so she is determined to not be killed by rebellion and die of natural causes (illness) at age 25. How will she do it? By befriending them. She doesn't care about herself, but everybody will warm up to her and worry about her. Tragedy/angst vibes

9.5 good in it's genre, give it a shot