Bog Standard Isekai - Chapter 30Book 1.

Lin Jin never imagined he would ever transmigrate. And to such a peculiar world at that. Here, deadly beasts were regarded as sacred, and thankfully, he owned a museum for deadly beasts.

An alien race invaded the Earth on June 6, 2128. At the midst of this war, many nations allied with the alien threat and the war nearly wiped out the rebelling humans of the planet. At the edge of mankind's survival, the United Nations Army launched its forces to eliminate the immediate stellar threats that loomed over Earth.

General Seeker Carlean, commander and leader of the mission, risked and gave his life to destroy the immediate stellar threat. The battle was won though Earth lay in ruins. Perhaps mankind will live to see a few years of peace before the alien threat returns to wipe out their existence.

At the immediate aftermath of the stellar battle, the fallen Seeker Carlean awakens and finds himself at aged 17, living the peaceful life he lived 16 years before he died.

So begins a new game in the battle for humanity's survival.

Bei Qingqing was left to fend for herself over eighteen years before the rich Bei Family finally took her back. She found that her identity as a daughter had been replaced by the ‘naive and adorable’ Bei Bei, who was kept in her family.

Affection grows with proximity, and that certainly applied for them — there was just no comparing the affection the Bei Family had towards Bei Bei, to the affection of their biological daughter. They had spoiled Bei Bei for eighteen years.

Using Bei Qingqing’s adopted mother’s illness as leverage, the Bei Family forced Bei Qingqing to substitute Bei Bei’s marriage to a comatose man, Chen Jiazhi.

It seems that Bei Bei was now all that mattered to them.

Even so, Bei Qingqing married Chen Jiazhi, who had been comatose for years and said to have no chance of waking up. By doing so, she earned her two-million-yuan dowry for her adopted mother’s hospital bills.

Though Bei Qingqing believed that she would be widowed for life, she didn’t expect an accidental kiss on their first night to wake Chen Jiazhi!

Everyone in the entire Chen Family — from grandparents to uncles — are now indebted to Bei Qingqing. They all spoiled her, especially her now-awake husband Chen Jiazhi. Naturally, the Chen Family also took care of her adopted mother by providing her with better treatment!

Bei Bei was left red-eyed in fury! She was supposed to be Chen Jiazhi’s fiancee. His enormous wealth and affection were rightfully hers!

Moreover, Bei Qingqing had health problems and couldn’t get pregnant. Bei Bei will do her best and scheme to replace Bei Qingqing!

Unexpectedly, however, Bei Qingqing was having morning sickness just two months after marrying despite rumors of her infertility!

As for the Bei family that abandoned her? They were declining at a visible rate, and soon wouldn’t even deserve to lick Bei Qingqing’s shoes!

Imagine being forced to live, after death, as incorporeal bodies trapped in a vast space of nothingness for thousands of years, with nothing to do but exchanging past memories with other cohabitants (read: weirdos). Everybody wanted out, but there was no way to leave the Void…

Until one day, a young man was finally summoned, as a powerful but reluctant mentor, by a bubbly and motivated but completely naive young girl. Baiyi, finally out of the Void, was the only one who could save all of the other 32 souls from their prison and his summoner might just be The Key to their freedom.

However, Baiyi had to use the techniques and abilities the other souls had taught him throughout the years, and together with his own extensive knowledge of anime and game tropes from his shady and dangerous past as an otaku, to face the biggest challenge of them all: training the clumsy young girl he was forced to partner up with… into a competent sorcerer!

This is a story of heroic adventures, cunning strategies and romantic tales. How will our MC thrive in a world completely strange to him? Where will his ambitions and abilities take him in the palace?

- Description from Novelupdates