The Puppy Dog Student Can't Ignore The Two-Faced Waiter

Ryu, ex-designer now turned cafe worker at Cafe Cleo owned by an old family friend, lives life faking smiles and being agreeable. His act would have been flawless if not for an annoying young customer, Haruto, who seems to see through him. As fate would have it, Ryu finds himself mentoring Haruto for his entrance exams. Little by little, they wade through the lies and acts, understanding each other better.

(Source: Futekiya)