The story of Wagaya no Liliana-san spins around relationship between Liliana, girl sensitive to mana due to her species as "Magi" and Tatsuya, a student. They first meet when Tatsuya finds her unconscious in dark alley surrounded by wild dogs which he banished. After that, Liliana decided to give Tatsuya her heart and body so she becomes Tatsuya´s girlfriend.
