Help mee

Need the title. From what i remember its something like derelict belover. Where Hestia,Fl is transport into some novel where on 1st round she live as npc and watch how the novel goes as normal people but end up meeting her bias, the 2nd ml in the novel caelus? Suicide, so on second life she decide to protect him cause yeah she love him as her bias and all. The fl has black hair and red eye while the ml have white long hair