It looks like you're asking me to develop a story based on Fate/stay night: Heaven's Feel , specifically referencing "raw chap 103," "raw manga," and "welovemanga." However, I don't have access to raw manga chapters, unreleased content, or specific scanlation sites like Welovemanga. Also, as of now, the Heaven's Feel manga adaptation (by Task Ohna) is still ongoing but hasn't officially reached a "chapter 103" in most published English or raw counts — the numbering may vary between scans.