Highschool DxD: Damn, I'm OP as Fuck!

Alternative Title: [Multiverse] HSDXD: Damn, I'm Too Overpowered!!====Support and read advance chapters at: patreon.com/Zexxxxy====Ding!"Congratulations, host! You have opened a three-star golden egg and obtained Excalibur: Sword of Promised Victory!""Congratulations! You have opened a four-star golden egg and summoned the Heroic Spirit Medusa!"In a world where demons, angels, gods, and artifact...