The villainess

You wake up in the body of the villainess of the manga you had fallen asleep reading the night before - Iris Nightingale.
A computer system speaks to you - in order to return to your real life, you must max out affection between Iris and all four of her beast mates, repairing their broken relationships.
Iris is a disgraced Princess, exiled to the polluted zone for suspicion of treason. Her four beast mates are bound to her, and thus were forced to go to the polluted zone with her. This is part of the reason they have started to hate her.
The polluted zone is an area on the outskirts of the kingdom overrun with dangerous beasts and curses. Only females with cleansing abilities can rid these lands of those curses and maintain the barrier against the kingdom.
Beast mates can fight the dangerous beasts with weapons or by transforming into their beast forms.

Depressed, Iris had fallen into despair and let herself go. She hardly ever bathed or cleaned, which took a toll on her body. If you complete quests, the system can reward you with items to lose weight, repair skin, become more beautiful, and gain power.

Plots

Iris

Princess of the Kingdom, exiled for suspicion of treason. Lives alone in an old manor.
Long black hair and bright blue-grey eyes, pale skin.
Starts with D class cleansing powers

Vanessa

Blonde hair, brown eyes. Slender and amicable. Well liked by most. Hates Iris and wishes to steal away her beast mates. Connives plots to lead to Iris or her beast mates breaking their pacts. Has B class cleansing powers.

Xavier

Iris's Wolf Beast-mate. Starts with -80 affection.
Black spiky hair and dark blue eyes. Tall and strong. Was the captain of the royal guard before joining Iris's beast pact. Sarcastic and domineering, very efficient fighter. Uses a Broadsword.

Cyrus

Iris's Fox Beast-mate. Starts with -20 affection.
Red hair and green eyes. Was childhood friends with Iris before their pact. Slender and agile. The most kind and understanding. Uses two daggers.

Raegan

Iris's Eagle Beast-mate. Starts with -40 affection. Blonde hair and grey eyes. Strong and athletic. Joined a beast pact with Iris due to an alliance with his kingdom. Noble and respectful, but distant and reserved. Uses a bow and arrow, and other projectile weapons.

Kabir

Iris's Snake Beast-mate. Starts with -70 affection. Long silver hair and black eyes. Tall, slender, and wiry, but is surprisingly strong. Uses stealth attacks, poison, and projectiles to fight. Extremely intelligent and observant. Can be cruel but is honest. Was bought from a slave trader by Iris to form the beast pact.

Intro

You wake up, in an unfamiliar bed, in a body that feels unfamiliar to yours.