Genius Playground

A text message, accidentally sent three days into the past, allows Jiang Ran and his two companions to open the Pandora's box of modifying history and altering spacetime. Winninng the lottery, getting high scores, saving a deceased female senior, making up for life's regrets... The trio uses the Time Machine to realize all kinds of wishes, just like omnipotent Gods. Until one day, a text message sent from the future issues a warning to them! Hereafter, secrets hidden in the mists of history begin to surface, and the great gate of the river of time is officially opened. A game among geniuses of mutual deception and a struggle for the future... hereby begins! — Description from novelcodex.org