3rd life, you died by beheading, again for saving Scara. Even though he died too after you died. Again, you repeated life when 21 y.o.

The memories of your previous life didn't disappear, especially when you die. Previous life, you already had a large scar on chest, now there must be a scar on your neck.

"Hey! You're daydreaming again! About your scars again? Don't overthink about it," Scara said, standing in front of you, he had enough of it. "Do you remember? I also have big scars."