Extreme Melancholy God System

I awakened the most powerful god-level system, but it relied on "melancholy" to upgrade. But I, Lin Tianye, have never been sad in my life. System warning: Zaixiao's repair base is cleared. I couldn't hold it back and laughed. All his cultivation was lost, and the whole audience laughed like crazy. Until I discussed the school beauty's bra cup in public and she slapped me—— I understand. It turns out that the only way to become stronger is to ask her to slap me more times.