that is crime (╯°Д °)╯╧╧
like saving them from suicide
I only know of
https://www.mangago.me/read-manga/bakeneko_katatte_sourou/ the MC attempts suicide in ch 1 the rest of it is the ML helping him get back on his feet by getting him rest and taking care of him, which sort of loosely fits your criteria sorry I can't be of much help (￣∇￣")
https://www.mangago.me/read-manga/unluckily_lucky/
Technically ML is trying to use Mc's power to commit suicide but MC tries to save him.
How?!
I thought she/he telling help for suicide, I mistook
（￣へ￣）??!
Manga with character helping another character from suicide