Subaru Natsuki in the world of High School DxD
[[Crossover + Isekai: High School DXD/ Re:Zero − Starting Life in Another World/ Naruto]]
Subaru Natsuki, the unfortunate yet resilient protagonist from Re:Zero, finds himself transported to the supernatural world of High School DxD after yet another death loop. Armed with his Return by Death ability, fragments of Merlin's wizardry, Kurama's kitsune heritage, and an ancient, mysterious tattoo over his heart that pulses with unknown judgment, Subaru awakens in Kuoh Town—home to devils, angels, fallen angels, and the infamous Kuoh Academy. Hidden within his mind, silent until now due to sheer laziness, resides Ddraig—the Red Dragon Emperor—quietly observing Subaru's every move without revealing his presence.
Determined to survive and avoid drawing attention, Subaru enrolls as a student and quickly befriends the Occult Research Club—Rias Gremory and her peerage: the elegant sadist Akeno Himejima, the princely knight Yuuto Kiba, the stoic cat-like Koneko Toujou, and later the innocent nun Asia Argento. Unlike Issei, Subaru has no perverted ambitions; his goal is simple: live quietly, protect those he cares about, and never die again if possible.