Phai,whowasraisedbyasinglemother,onedayfindsablackonyxringhiddendeepamongmother’sclothes.Theringbecameanimportantpuzzlepeicesparkinganeedtouncoverthetruthaboutherfather,whomshe’snevermetorknownanythingabout.WithherbestfriendandshadowTonbyhersidetosupporther,Phaisetsoffonajourneyfullofquestionsanduncertainty.Alongtheway,theymeetMengla,amanwho'dalsogrownupwiththesenseofhisfather'sabsence. Drawntogetherbysimilarpasts,thethreebeginpiecingtogethercluesthatleadthemtotheMonBridge.Whatstartsasasearchdrivenbyfrustrationandconfusionslowlybecomesajourneyofgrowth.Throughit,Phaibeginstounderstandwhatfamilymeans,howtoletgoofresentment,andwhatittrulymeanstolivewithpurpose.