Is My Only 12% coming back?

Cake and See-ew are close despite their different personalities. Cake goes abroad and when he comes back, he finds out that See-ew has changed. Many people like and approach See-ew and that makes Cake feels jealous. Cake begins to question his feeling for See-ew. Apart from the relationship issue, See-ew also faces with family problem. See-ew's mom is getting sick and he later finds out that she has cancer as she exposed to secondhand smoke from her husband. See-ew hold grudges against his dad for that reason. However, Cake is always there beside him and go through all the obstacle together. See-ew realizes that Cake is more that a half of his life but he is actually his whole life.