The Saintess and Her Four Divine Artifacts

Mutsuki is the creator of an otome game. Because the game has too many cash-grab features, it has been flooded with bad reviews. The players' resentment traps her inside the game, and she can only return to the real world by completing four happy endings and unlocking the hidden ending. Mutsuki: A big spender like me never fears a challenge! I'll set a model example for the players! After N playthroughs, Mutsuki: Help!! The paper characters are terrifying QAQ!! The future has been turned upside down. Religion is at its end, and the light is fading. The only holy maiden of the temple has finally awoken after a thousand years of sleep. In this world forged from steel, she must find four sacred artifacts to unlock her divine power. A man with a genetic defect that leaves him constantly on edge. A white-haired gentleman wearing a restraint device. An intelligent AI whose emotional module has malfunctioned. A giant mermaid imprisoned on a deserted island. Tame them and retrieve the sacred artifacts. To do so, Mutsuki will have to pay a tremendous price. Today, she comforts Character A, telling him the world's light will never abandon him. Tomorrow, she takes Character B's hand and says that only she can save him, so he must never give up on himself. One second she's cuddling up to a handsome guy in the lab, and the next she's on a deserted island, caught in a forbidden romance with a mermaid. Mutsuki: I'm giving myself multiple personalities! Until one day, a glitch in her identity switch reveals the existence of the other four to each of the men. While playing the game: Aaaah, sick guys are the best! When I'm actually there: Help me, officer!! Theme: The greater the power, the greater the responsibility