Tokyo: Why Do They All Have Systems?

"Mizuno-san, I want to date you. It doesn't matter even if I give up the system of getting rewards for failed confessions." "Ling, I will leave Tokyo tomorrow and I will never use that thing to spy on you again." "Junior, looking at each other is like a mental kiss, idiot! I didn't let you stare at me." ... Reborn in Tokyo, Mizuno Rei is determined to embrace the world and bring happiness to others. With great ambitions, he has been waiting hard for seventeen years, but there is still no sign of awakening the system. When he came back to his senses, the system actually appeared on his girlfriend and helped her conquer herself! ? Wait, what do you mean you both have a system, but only he can see it? This is what happened when he met problematic girls on his way to becoming a gentle boy.