After collapsing at his black company that ravaged his body and soul, Shinichiro Niihama finds himself in his second year of high school.  His high school life was dark and gloomy... however, he is certain that he can start it over.

Haruka Shijoin, a beautiful girl whom he met before, suddenly appears even more innocent and cuter than Shinichiro remembers, and above all, she stares straight at him...

If he could change the future, Shinichiro would, without a doubt, save her after she committed suicide following severe bullying. With his adult mentality and corporate powers, he is going to enact his revenge by bringing the best out of his second youth with her!