The Returner

A young man wakes up following a tragic incident. A [GATE] opened in the middle of the road while he was traveling to work, unleashing eldritch monstrosities upon mankind. He was one of the many people who fell victim to them during their first appearance. The young man didn't get the opportunity to flee or complain. He was killed in one swoop before accomplishing anything.

Or... that's what he thought at first. He wakes up in a new body, the body of a young woman?!

He's woken up as an Awakener, with the ability to Return From Death! Each time he dies, he is revived in a new body! With a growing will and a broken ability, he strives to level himself up to change his destiny of repeatedly dying!