Story was great, the author wrote a good ntr revenge story. I liked what the Mc did to both his childhood friend and the other guy. They deserved what came to them for the betrayal of what they did to the Mc.
Netorare Yuusha no Yukusue/The End of the Line for the Cuckold Hero EX
The story is good since the Mc is a villain and he is quite smart, cunning, and ruthless when it comes to getting what he wants and destroying his enemies. The translation is passable and the translator updates chapters regularly.