This manga is sudden death speed dating with Baskin Robbin’s 31Flavors of Shoujo Clichés.
If your faceless yandere ex-boyfriend from a goukon attempts to murder you by electrical fire because you have onni-chan issues, never fear, you can travel worlds via magical science experiments, get laid by a hot wealthy powerful stranger, and have a pregnancy scare before lunch!
Beloved idol Marisu-chan finds herself freed from a life of trauma (involving cages! lions! a jealous onee-chan! a pedophile who groomed her since adoption!) via an assassination on stage. To her surprise, Marisu-chan is reborn and thrust back into the entertainment industry with all the skills from her previous life to crush fellow trainees! This time she finds another wealthy obsessive sponsor who wants to bang her, has a giant leopard of his own and is in the not-yakuza. Solid. /s
Ivy King