Эп. 4: Иссэи клянется спасти Азию от ритуала Рейнаре в Церкви, несмотря на то, что он дьявол.

4

While on a date with Asia, Issei finds out her past as an excommunicated nun from the Church. Issei vows to be her friend regardless of being a devil, but they are interrupted by Raynare, who captures Asia. Later, Rias explains a special ability that pawns have: Promotion. She suddenly leaves with Akeno, leaving an ambiguous note about the Church as enemy grounds. Issei remembers Raynare's speech about a ritual with Asia tonight and is determined to rescue her. As Issei heads for the Church, Kiba and Koneko follow him having understood Rias's message. They storm into the sanctuary and defeat Freed, however, Issei finds Asia chained to a cross where Raynare is about to complete her ritual.  (Source: Wikipedia)