The Omnistore System - Chapter 251 Power and in power people

Sergeant Xia Yao, born into a wealthy and renown ancestry, is a playboy who has turned over a new leaf. Yuan Zong is an ex soldier from the special forces who opened a bodyguard training company after being discharged.

When Yuan Ru, Yuan Zong’s sister fell for Xia Yao’s charms, but could not break down his erected barriers, she came to Yuan Zong for assistance. Little did she know, the moment Yuan Zong saw Xia Yao, this ex-special force knew no other person would ever catch his eye.

And so begins the battle between brother and sister for the most coveted price – Xia Yao’s heart.

- Description from Novelupdates

After saving one world from a demon god and earning the trust and admiration of a perverted goddess who wants to be his plaything, Sol's terrible luck causes him to get summoned again to another world with her almost as soon as he returns to his own.However, this time around he refuses to take on the role of a hero.Instead, he decides to challenge a pantheon of gods as a side quest while living as a simple and misunderstood man under the protection of his goddess who took his place as hero. Unfortunately, even without trying Sol can't avoid attracting trouble and is constantly getting dragged into epic battles against the gods without even trying because of his cocky personality and bad habits.But that's fine too, if the gods want to fight then he'll gladly take them on and plunder them into ruin!

Zong Shou woke up from a dream and realised that he had time traveled back ten thousand years, to an era before the God Emperor was had appeared in the world.

Based on the popular Vocaloid series, by HoneyWorks, called “Kokuhoku Yokou Renshuu (Confession Rehearsal)“:

Natsuki, a third-year at Sakuragaoka High School, who holds unrequited feelings for her childhood friend, Yuu, who’s in the Film Club. However, instead of being honest about her feelings, she makes him be her confession “rehearsal” partner. Unable to say her true feelings, things start to get complicated when Miou and Akari, who are also in the Art Club, get involved! Will she ever be able to confess for real!?