The Male Lead? I Don't Want Him - Chapter 71

A botched rescue mission with an unknown objective cost Zhou Yu his team members, while leading him progressively closer to the multinational biotech corporation Juli’s research core.

In order to protect his botanist younger brother Zhou Qing, Zhou Yu accepted employment under the Juli Corporation, and is dispatched to a parallel world—Nibelungen.

Nibelungen’s biological systems are completely different from the world Zhou Yu is from. To live in this place, Zhou Yu must follow three great laws:

The first law, fear is the sign of the hunted, so you must never show fear.

The second law, the more beautiful an organism is, the more dangerous they are. Do not approach them, and do not trust them.

The third law, do not be misled by the mimicry of S rank organisms. They understand your mind, and they know how to entice you. Always remember that they have no human emotions or love. All humans are no exception to them.

Finally: We wish everyone can live happily in Nibelungen.

- Description from Novelupdates

For non anime fans- Yandere is extremely possessive girlsIn an open world MMORPG game called Stellaris Fantasia Online, me and my partner we're rising to the top, killing other players, farming loots and so on....But, yes, this partner of mine won't let me play with others.... even with my friendswhy? because she's a Yandere....Its so irritable that I unfollowed her.... well that decision hurts me too, since she might turns out to be a hot onee-san (older woman)But as soon as I attend the class, my homeroom teacher is in bad mood...Why??Just read the title....

Awesome, I'm gonna catch a nap after lunch, and bam! Kidnapped.Of course, the damn floating screen in front of me tells me it's a once-in-a-lifetime 'job' opportunity as a streamer for all realities, living epic adventures, and whatnot.Well... except for the part where I couldn't refuse and kinda ended up in a damn forest with just the clothes on my back, I have no freakin' clue where I am, besides the fact that I'm no longer on my damn beloved planet, and apparently, there'll be a frickin' endless number of people watching me do everything?“I think I'm gonna have a freakin' aneurysm...”[...]It's my first time writing here, I've been wanting to write for a while now, so well, here we go. English is my third language, so there might be some mistakes or incorrect forms of writing, I apologize for that, if you notice any, please let me know, and I'll try to fix them.

“Married rich for three years with no child born. Just when she was finally cured of infertility and ready to give him a child, he brought home his pregnant mistress in high profile.

“”Get lost if you can’t get knocked up. Or do you want my son to be the last of the Mo family?”” her mother-in-law viciously cursed.

Her husband grimly shoved a divorce agreement upon her face, “”I’ve signed. Leave when you are ready.””
It was heard later that two men went physical in the city plaze of Ye City to win back the wife, with the two babies at the side fighting fiercely for their mom!”

- Description from Novelupdates