Translated name: The Regressed Blood Knight's Strategy
Original name: 회귀한 혈기사의 공략법
Translation status: Completed
Translation group: Helheim Scans
Chapters: 200
Novelupdates: https://www.novelupdates.com/series/the-regressed-blood-knights-strategy/
Format: Preferably EPUB, if possible. I can't convert PDF to EPUB (→ MOBI) without the file losing the chapter structure, turning into a large text with no chapter differentiation.