I Upgrade with Tears

Whoever laughs, let him cry Ever since Su Cong got his first weird skill, he has justifiably embarked on the path of being a villain. ... "Tears can level me up and make people cry? Is this an infinite loop?" "Well, it seems I can't keep a low profile anymore." "Look, some naughty guys came to mess with me again, and ended up kneeling down to cry out their tears." "I can't thank them enough for their kindness. I can only repay them with upgrades."