The Sinister Male God's Whitewashing Plan

Wang Sanbai seems perfect to people he knows, but cold to people he doesn't know. Fu Jingxi looks cute to people who know her, but looks silly to people who don't know her. Wang Sanbai came back from abroad and met his ex-girlfriend's breakup scene. So, should he, his ex-ex-boyfriend, have no choice but to go get the certificate?