Xi Luhan and Zhang Yixing (Lay) are best friends. Yixing is deaf and constantly forgets his hearing aid. Yixing has a crush on Oh Sehun. Sehun likes Yixing too. Luhan hates Sehun. Luhan will be damned if he lets Sehun get anywhere near Yixing; Sehun is determined to get his cha