I've been looking for this manga series about a reincarnated FMC taking revenge on behalf of OG who died from fiance and her household's abuse.
I can only remember the part where FMC gathered with the OGs friends and told them how the OG died and help her takes revenge of OGs abuser
There this manga series about fmc getting revenge for the girl she reincarnated into to her abusive fiance.
I can only remember before FMC reincarnated, the girl died from explosion in some room( I forgot if was her bedroom or an emty room) and the part FMC tells the girl's friends what happened and helps her get revenge on her fiance