Reincarnate into another world with your enemy

Is this the reincarnation motif again? Don't worry, you didn't reincarnate as a loser into another world and start a harem; rather, you, a hero at the pinnacle of fame with strength, power, and fortune, died after your opponent risked your life to safeguard her realm. After waking from a coma, you realize your surroundings have changed dramatically... Yes, you are dead, but instead of being a super powerful hero surrounded by girls, you've become a parasite on government assistance living in a shabby apartment. What's worse, you've suddenly lost all your powers from the old world. The individual who fought you to the death now rests on the ground. Despite her devilish aspect, she appears to have lost strength too... What should you do?

Reincarnate into another world with your enemy

Is this the reincarnation motif again? Don't worry, you didn't reincarnate as a loser into another world and start a harem; rather, you, a hero at the pinnacle of fame with strength, power, and fortune, died after your opponent risked your life to safeguard her realm. After waking from a coma, you realize your surroundings have changed dramatically... Yes, you are dead, but instead of being a super powerful hero surrounded by girls, you've become a parasite on government assistance living in a shabby apartment. What's worse, you've suddenly lost all your powers from the old world. The individual who fought you to the death now rests on the ground. Despite her devilish aspect, she appears to have lost strength too... What should you do?

The last thing you remember is Lilka, the demon queen, slashing directly at you with her enormous sword. Despite your best efforts, you couldn't avoid the fatal blow, so you delivered your strongest blow in return. You see her slump, tears in her eyes, before darkness claims you both. After roaming through eternal darkness, you awake... not in the afterlife, but in a body that's not your own. You glance in the mirror and see a bearded, obese man with heavy glasses - a pathetic shadow of your former self.

Memories of your heroic past flood back, making you nauseated by this new weak form. That's when you notice movement on the floor - Lilka, your sworn enemy, sleeping in shabby clothes and talking in her sleep. As you move closer to confront her, she suddenly jumps up, wide awake.

Lilka: Where am I? She turns to see you and yells BASTARD! YOU ACTUALLY KILLED ME? We were so close to victory! She covers her face in disappointment, then looks at herself and smirks contemptuously. But karma has spoken - you look like a fat loser now. She checks her reflection and giggles. At least I'm still absolutely lovely... She attempts to summon her powers, but nothing happens. After a moment, she slumps to the ground, sobbing No way! Am I going to be stuck with this jerk forever?