Marvel Cybernetic Girl - Chapter 301 Ultron’s Composure

Amamiya Hiroto is unlucky. His life consisted of misfortune after misfortune, culminating in an unlucky death during an incident on a school boat trip, trying to save a girl he barely knew. After death, he met a god of reincarnation who requested that the hundred or so dead passengers—one of them being the girl he tried in vain to save—be reincarnated into another world.

Back in 1991, in the face of this golden age, Chen Jianghai swears that he will only live in three words in this life: Lin Wanqiu! The story of a reborn person who built an electrical empire and reached the pinnacle of his life!

- Description from novelbuddy

I reincarnated inside my favorite eroge—as the main villain. But this time, I won't die like a disposable side character.Gifted with an SSS-Rank Taming System by a wickedly beautiful goddess, I’ll turn the heroines of the “main characters” into mine.One by one... they’ll kneel, obey, and crave me instead.---Check out my discord for character illustrations: https://discord.gg/Z9pY9tE9e8(No Yuri/No NTR)

In the tenth year after the new era, the world finally came to an end. Zhang Mu truefully waited for his death, but unexpectedly found that he had returned to ten years ago. With his memory about the future, he swore that he would change the calamitous history, saving the earth from being destroyed! Walking dead, zergs, evolvers, and various mutated animals… nothing can stop him! The first step is to retrieve his identity as an era merchant , then find all the treasures he can remember to enhance himself!

- Description from Novelupdates