Source: https://kakuyomu.jp/works/16818093090568338422
synopsis
Asteria Quest 7. I found myself reincarnated as “Castor,” a supporting character in my favorite RPG game.
I had a favorite character in this game. It was “Estelle,” a beautiful girl swordsman who belonged to a certain party. In the beginning of the game, she fought Tejato, one of the Four Kings of the Demon King’s Army, as a substitute to help the heroes escape, but it was a losing event. After that, the whole party is sent to the Demon King’s army’s mining site as slaves.
In order to save my favorite character, Estelle, I rushed to her and the others, and we all managed to survive. But I was left with a big scar on my back, and I didn’t wake up until a month later.
“–Castor-sama, Castor-sama, Castor-sama, Castor-sama, Castor-sama!”
When I woke up, it was my favorite character “Estelle” who was crying beside my bed, happy for my survival.
“—I will be devoted to you for the rest of my life!”
However, saving my favorite character made me regret it a little later on. That is because her love was abnormally too heavy for me—