Supanut

颂克拉姆和埃都是工科学生，住在大学宿舍。颂克拉姆是宿舍3的学长，宿舍3是“强壮且有运动能力”的男学生被分类的地方。埃是2号宿舍的学长，2号宿舍住的都是“好看”的男同学。 　　埃曾经是颂克拉姆的导师和朋友，但是当他们两个都被选为宿舍的舍长后，他们就分开了。2号和3号宿舍已经吵了好几代了。埃和颂克拉姆虽然表现得像是敌人，但是埃实际上是爱上了颂克拉姆。然而，他认为颂克拉姆对溟恩有感情。埃不知道的是，他才是颂克拉姆喜欢的人，而不是溟恩。

圭（查纳浦·提恩翁 Chanapoom Thenwong 饰）的父母在他很小的时候就离开了他，因此，圭从小就明白一个道理，那就是在这个世界上，可以依靠的人只有自己。如今，圭凭借着努力即将完成大学的课程，课余时间里，圭在一家咖啡馆打工。　　索罗（苏帕努·洛瀚帕尼 Supanut Lourhaphanich 饰）是刚刚踏进大学校园的新鲜人，他出生在一个富裕的家庭之中，从小就过着养尊处优的生活，只要他想，就没有得不到的东西。直到有一天，母亲的去世让索罗开始明白，母亲那温柔的笑容是无论花多少钱也买不到的。某日，索罗踏进了圭所在的咖啡店，圭温暖的笑颜深深触动了索罗尘封已久的内心。

Orphaned at a very young age, Gui, a fourth-year engineering student, has had to work hard and earn for himself for as long as he can remember. Still, through the test of time, he still has a soft demeanor and a smile on his face. Solo, a freshman in the Faculty of Music, can get anything he wants with a flick of his wrist. Money, fame, good looks, the boy has everything, except his smile. When Solo's mother passed away, she took with him his smile. Nothing could fill this missing hole in him... that is — until one day when he sees a smiling boy working at a cafe. One night the two worlds collide in a small coffee shop. For a cup of hot milk and a warm smile, Solo finds himself back in the cafe every night. For a soft boy who reminds him of a husky, Gui finds himself waiting for a late-night visitor with a cup of hot milk, night after night. Night after night, the two boys continue to meet. At the same spot, at the same time, until they soon come to realize that they have become each other's breath. A necessity. Just like Oxygen.