MTL - Billion Technology Crystal System - Chapter 30 : It's time we stood up!

The 7-year-old little crybaby met 11-year-old big brother who ran away from home.
[This man became the protector of redemption in his life]

The 16-year-old little dragon fell in love with a 20-year-old big brother.
[It’s a pity that the big brother didn’t recognize him as the little crybaby]

The 23-year-old single father and 27-year-old chief executive meets again.
[This time the little crybaby and his big brother are finally together]

Fortunately we met through hundreds of millions of people, Thank God, for letting us break through many obstacles and get back together again, falling in love with you and being with you again is the greatest fortune in my life.

- Description from Novelupdates

An Apocalypse descends—as a lethal super-virus wipes out most of the human population. It took less than a day for the world to change forever—bringing mankind to its knees.It’s a time of misery and death for most, however, there are some who are lucky. Zane Graves, who came across a “Blood Crystal” is given an ability: [Dead Man Walking]—which grants him a special power, and so setting him off on his path to the top!

In a world ruled by magic crystals, Luther Isan is anything but ordinary. After a twist of fate throws him into the pages of the dreadful novel Magic Crystals Reign Supreme—a book he loathes with all his heart—he awakens inside the body of a character so minor he appeared only once and was promptly forgotten.But fate has other plans. To his horror, Luther discovers he possesses a power long thought impossible: the ability to wield magic without the aid of a crystal. A gift so rare, it sparks fear, awe, and suspicion in equal measure.When he accidentally saves the novel’s protagonist, Luther is mistaken for the “Child of the Gods” and proclaimed as the world’s saint. Suddenly, every faction wants a piece of him—while all he wants is to run far, far away.Armed with nothing but sarcasm, bad luck, and a desperate wish to escape, Luther is dragged into idiotic situations, endless misunderstandings, and world-saving duties he never signed up for. And to make things worse, the true protagonists of the book have now been ordered to guard him at all costs.Can a man who just wants peace survive being the most “important” person alive? Or will the world’s fate be doomed… because their so-called saint is the ultimate reluctant hero?

Ever since He Mulan, a 28 year old forensic investigator, transmigrated into the post-army civilian Hua Mulan’s body, she’s been under a lot of pressure. Unlike the folktale ending, there are no flowers or applause to be found here. After leaving the army and returning to her hometown, word by the countryside has painted the now 32 year old Hua Mulan as a homicidal maniac, an old hag, and a freak of nature, among other nasty things. Between piecing together Hua Mulan’s scattered memories, grappling with her fellow villagers’ prejudice against her, and fending off Mrs Hua’s attempts to match make her, He Mulan has her hands full. All He Mulan wants to do is protect Hua Mulan’s body till her soul comes back, but fate has other plans…

- Description from Novelupdates