In the World of Sword and Magic as Space Marine - Chapter 89: Sanctus Imperator Renatus

Lu Yu has been given a gift from his friend-- a game headset that can simulate reality at one hundred percent and that allows him to enter the Divine Martial Realm. However, unlike other games, this one could be really dangerous and cost a fortune.“If you die in the game, it may cause the brain to mistakenly believe the body is dead in reality, leading to a false impression of brain death, which could become real death.”“... A hundred bucks just to send a message? This game is nuts!”

The path of longevity is loneliness, it is solitude, it is the unbearable cold of being at the summit.Reborn in a different world filled with hidden dangers, Song Changsheng fortunately obtains a mysterious Daoist Scripture:Breaking through to Early-stage Qi Refining, he obtains the “Yin Yang Profound Flower Scripture,” absorbing Sun and Moon Essence, cultivating both Yin and Yang.Breaking through to Mid-stage Qi Refining, he obtains the “Breath Concealment Technique,” concealing his aura and obscuring heavenly secrets.Breaking through to Late-stage Qi Refining, he obtains the “Water and Fire Manipulation Technique,” and the world's water and fire become his vanguards.Breaking through to Qi Refining Great Perfection, he obtains the “Delusion-Shattering Pupil Technique” to see through confusion and trace things back to their source.Breaking through to Early-stage Foundation Establishment, he obtains the “Five Beasts Body Refining Technique”...

Xue Xi is forced to fall in love at first sight with this dangerous man on their first meeting. With death being the only other option, she makes the first move:

The aliens came with hostility.
Facing the invasion of aliens, human beings are weak like ants.
So this is the end, the real end.
But there is resistance when there is an invasion.
For some, this is not the end, it is war.
So this is war.
Real war!

- Description from Qidian