The Heroine is My Stepsister, and I'm her Final Boss - Chapter 2: A King and A Father

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

The Doomsday Game DescendsIn 12 hours, the world will enter a long night. The long night is nothing more than an inconvenience. Other than electricity, wireless communication, and modern technology, such as thermal weapons, which cannot be used, no other ecological environment will be negatively affected.You should work on improving yourself as soon as possible before the long night begins.It is imperative that you pay attention to those around you. It is possible that he or she will consume your brain in the next few seconds.By chance, Ming bound the Lottery System

Three years ago, in the land of Reinbulk, a Legendary Hero was summoned in the Kindom of Leezalion and he succeeded in repelling the Demon King. Now, five students are summoned back into Reinbulk by the Kingdom of Luxeria to fight against the Demon King and the demon army. Unlike the other heroes, Yashiro Yuu has no magical affinity and the Luxeria Kingdom has no intention on acknowledging his existence or returning him to his world.