Part 5: Beginning of the Fight is an issue of the Resident Evil: The Marhawa Desire manga series, known as BIOHAZARD marhawa desire in Japan. There, it is referred to as "Episode 5" (第5話 Dai 5-wa ). It was first published in Issue #17 of the Weekly Shōnen Champion Extra's 2012 series, but was later on re-published in the first tankōbon volume on June 8.
The Episode recaps with the zombie attack on Mother Gracia, which she and her student-guards repel. With the zombie's head destroyed by the gunshot, it is finally dead. Gracia orders her aides to clean it up, and they take the third infected corpse to be incinerated.
Gracia talks with an unidentified man in a white suit, discussing Doug's chances of solving the case. To ensure Doug's commitment to the investigation, someone has destroyed his jeep, stranding him and Ricky. Too far to walk, Doug turns down Ricky's request and the two go back to their room. Discussing Mother Gracia, Ricky asks if she and Doug were lovers. Doug dodges the question, and says she used to be a very different person.
In a flashback, we see Gracia inherit Presidency over the school in her uncle's will. She was confused by his request: he had many children and sent them abroad for high-quality education. While Gracia stayed nearby, he never came over to visit. Despite becoming President unexpectedly, she puts on a nun's habit and prepares to live the remainder of her life as a Mother.
Returning to the discussion on their investigation, Doug wants Ricky to help him search for the source of the infection. He doesn't want his nephew going near Mother Gracia in the meantime.