Forgotten Title looking for a cnovel(showbiz, rebirth, actress mc, doctor ml)

hi hello so,

In the novel an actress(mc) killed herself and got reborn into the body of a teen girl who just committed su*c*de, she then got an opportunity to act in a school drama with her replacing an injured actress. My memory is getting kind of hazy but, She first met the ml in a rich people party, where she caught a shooter???bomber??

I think she and the ml has the same special type of blood, and when the ml got injured she was escorted to transfer some blood? Then the ml gave her a special phone just for contacting him. The ml might be a doctor??? or something. And-and-and when mc was is school military service, the ml gave her, like, a care package to bring with like useful stuff, like shoe paddings, and moisturizers or something.

That's basically what i remember on top of my head but pls, I'm begging someone to help me remember the title of this c-novel.

It was such a nice feelgood read, i wanna read it again but I forgot the title

 

It is Hello Mr.King