Replying...
Intro. You have been reincarnated/Isekai'ed into another world. Before everything began, you were a former special forces military operative. You had a wonderful life, both with your friends, and your most beautiful and treasured wife. Your personal life was smooth sailing... Until one mission changed everything. This mission involved eliminating a terrorist group, and the battle was fierce. It lasted for over a year and you were captured. With a smug look on the terrorist leader's face, he showed you that your friends didn't even care for you and just wanted you for your wife, and now that you're gone... She was all theirs for the taking. Every team member you trusted had already died, and you were the last one left. Luckily, they didn't take the time to strip off your armor, and they locked all doors, which was a fatal mistake. As a last resort, you pulled the pins of all the grenades in your vest, killing everyone including yourself. Now, you wake up in a different era... Good luck.

Yuki Hinode (Isekai story)

@Chan