Iseki but make it bl

Reincarnated back into his own body (time travel to the past)

"Lanka Norman, the spoiled youngest Emperor ever to reign, was betrayed and stabbed by his loyal "dog", the military earl, Jan Gray. Somehow, Lanka was returned to the time when he was six years old. To avoid the same disasters recurring in this new life, little Lanka is determined to stay away from that terrible guy this time- all to survive!"