spirited-away's Manga

paused at 86—i dislike school settings so I don't want to bringe through with a foul mood
(A host of a special system takes on numerous events to avenge female leads from their cheating partners in a so-called "small worlds". Here, fictional worlds like a drama or novel takes place. the host will possess the bodies of the female characters who have died or killed themselves in agony then satisfy their dying wish.)

FL: Frail body, Capable, Fears love after being betrayed, Vocal
ML: Capable, Love makes him shy and adorable, loyal, respectful
Subordinates of ML: Supportive and devoted, a little sarcastic
Family of FL: loving and concerned
Atmosphere: Romantic and Comedic (so much funny faces)

MC: Insightful, Morally Gray
Tasks: Employed by dimensional clients to relive their regrets and attaining a "could've been" future which could satisfy them
Challenges: Moral Dilemma, Survival, and Client Satisfaction
Atmosphere: Serious

MC: Cunning, Desires carefree life (ironically makes more work for himself)
Side Characters: Misunderstand his intentions but ultimately benefits from MCs decisions–becomes attached to MC
Antagonists: Numerous (either confrontative or unexpected)
Atmosphere: Amusing, Heartwarming, PLOT TWISTS
**I'm more into the novel than its adapted form, but I'm pinning this for the sake of art