Toaru Majutsu no Index: New Testament - Volume 15, Prologue: The Reverse Reverse Side of the Coin — Rock_on_Right_Arm.

Dr Dalton Wyatt, a world renowned Scientist and Inventor is transmigrated to the body of a high school student Dalton Wyatt who committed suicide due to unfortunate circumstances and complicated life.

This is a cliché story about two young people saving the world.

Ji Liao was particularly distressed lately. He had been “sexually harassed” for no reason. Moreover, the other party was a man! Never mind that it was a man but it was well-known class grass [T/N: Refers to the best-looking guy in the level] and school bully——He Cheng Ming!

– He Cheng Ming in front of others: “You wanna f*cking die?” “Better shut your mouth!” “Get lost! As far as you can!” He Cheng Ming in front of Ji Liao: “Baby, you smell so nice~” “My dear, you’re so sexy!” “I’ll always listen to you. Kiss me okay?”

– Experienced Overbearing Perverted Seme VS Novice Shy Cowardly Uke

- Description from Novelupdates

He was just an ordinary man from modern era.Yet he was also a feared deity worshipped in divine era.In this time where gods walked with mortals, he will survive and thrive.He is no longer a man.He is Hades, the God of the Dead and King of Underworld.