Who knew I knew you were from the poem "It's Hard to Calm Over Thoughts". According to the query of relevant information, Who Knows I Know You is from the poetic dialogue between Yasuo Nightbringer and Riven Skin Dawnbringer in the game "League of Legends". . At this moment, in this scene, my heart has become frozen. This hatred has been deep for many years, and this love has lasted for a long time. Who knows that I know you, I know you deeply, my face is like frost and snow falls, and my kiss is like frost on snow.