MTL - All Chat Members Are Me - Chapter 412

After Gu Jinghe passed through the book, she became a cold and ruthless overlord. The system asked her to abuse her heart and body against the poor heroine, and the world was broken.
The heroine is both beautiful and miserable, Gu Jinghe couldn’t bear it, and decided to put on another vest to secretly compensate her.
She seamlessly switches between old and new identities, and lives like a genius every day.
When she was the overlord, she looked cold and stern, with a mocking smile on her lips, and her fingers raised the heroine’s chin: “Ji Yunyan, the fate of the Ji family is in my hands, you’d better be obedient.”
In her new identity, she smiled brightly, and her voice was sweet and soft: “Yanyan, can I go to your house to do my homework?”
Probably because of her superb acting skills, the heroine treats her with a cold face as the domineering boss, and smiles like a flower at her new identity.
Until one day, when Gu Jinghe routinely confronted Ji Yunyan as the boss, Tian Liang Ji Po, Ji Yunyan suddenly called out her vest name to her.
Gu Jinghe agreed…
Gu Jinghe: Why don’t you listen to my explanation?
Ji Yunyan: (smiling) Make it up, keep making it up.
[The story of two people who thought they were straight but were not so straight flirted with each other, and ended up breaking themselves completely]
(The cover is the persona of Mr. Jing Heba)
Ba Zong and Jiaojiao seamlessly switch between the superb acting skills of Shou vs. the attack of the disguised little white flower

Content tags: system sweet text wear book
Search keywords: Protagonist: Gu Jinghe ┃ Supporting role: Ji Yunyan ┃ Others: Chuanshu, Overlord, Actress
One sentence introduction: I fell off the horse in front of the heroine
Intention: No matter what difficulties you face, you must stick to your own nature and not fall into darkness. the

- Description from novelbuddy

Grace Lightsinger is just a simple farm girl.Ever since the death of her parents, she's been taking this slowly, one day at a time. That changes when she dies protecting a stranger. But instead of a peaceful afterlife, she finds herself reborn as an angel with a mysterious “Saintess System” that no one else can see. She's made to choose between three factions of gorgeous immortals: warrior angels who fight demons, healer angels who tend the wounded, and love angels who raise morale through very intriguing methods.However, unlike other angels who can only master one path, Grace discovers she has an affinity for all three. This hasn't happened since the goddess Eternia herself walked the heavens, which leads to Grace learning that she might be more than just a regular angel. She might be Eternia's chosen successor, herself.But not everyone in heaven is happy about Grace's arrival. The scholarly Choir questions her legitimacy, fallen angels show dangerous interest, and that's not to even begin talking about the demons she'll be fighting.Grace wanted a peaceful afterlife, but between training, fighting demons, and trying not to die of gay panic, she's about to discover that heaven is a lot more dangerous than she ever imagined.

A scientific genius named Thomas Harrier was transmigrated to an imperial prince body after a car accident that took his life. He found out that he is in a world similar to our own with a timeline akin to early twentieth century. The body that he is occupying was the imperial prince of a failing empire who suddenly rose to power after a successful assassination attempt of his father. Unaware that the attack is just the beginning of what is to come. He faces many challenges throughout. Will Thomas Harrier be able to live his second life in peace while running an empire and getting it back to its former glory? Or will he succumb into a conspiracy lurking within the country's borders?

Expect some:

Cold war era techs.

Super battleship with advanced electronics, propulsion, and fire control systems?
Helicopters?
Missiles?
Modern medicines and equipment?
AC-130?
A nuke?
Challenger or Abrams or Leopard?
F-4 Phantom or MIG-21?
Colored TV's.

Everything!!!

PS. Cover not mine, I just found it on google.