Gu Ran transmigrated into a harem battle manga he had drawn, becoming the final villainous BOSS. He was besieged by the protagonist group right from the start, and his situation was extremely precarious.

Trapped in dire straits, he awakens the plot editor, which allows him to use his familiarity with the plot to rewrite his past life and clear his name.

He found his younger sister when he was a child, and they depended on each other ever since. He protected his sister from any harm and did everything he could to help her enter the realm of superpowered individuals.

In his youth, he fell in love with a mermaid princess from the ocean, and lost all his martial arts skills, silently protecting the mermaids for three years.

Having lost his superpowers and martial arts skills, he forged a third path for humanity, leading Lanxin University in the fight against extraterrestrial aliens.

The Hero Association was established to protect the poor, enhance humanity's technological capabilities, and solve the problem of the beast tides...

Once their memories are exposed, the female protagonists are filled with remorse and immediately turn against their former allies, crying and begging for forgiveness.

However, when they fought for Gu Ran and tried to rescue him, they discovered that the triangular crystal cone trapping Gu Ran had cracked.

Gu Ran is dead?

I will always love Eriri Sawamura, Megumi Kato, and Utaha Kasumigaoka. *Slap*— Is that what you call liking? You're just lusting after their bodies! You... *Slap*—(slaps back) So what if I lust after their bodies?! You have to live your life clearly, know what you want to do, and be honest! (Crossover anime worlds, tentatively: How to Raise a Boring Girlfriend, My Youth Romantic Comedy Is Wrong As Expected, You're the Only One Who Likes Me, School Days, Sword Art Online, Black Bullet, Ultraman Tiga, Dragon Ball... and some other strange and wonderful things.)