Was there a novel similar to the legend of mech pilots?

The main character must be cold and not easily moved. It would be best if he never moved. For example, the male lead in the Gokudo Path Cultivation Record. Although there were more than 30 female leads, he never moved. This was the difference between a harem and a stallion. If not, he could be calm and composed. I hate novels where the male lead gets dizzy when he sees a beautiful woman. The male lead doesn't have to treat men and women equally, but at least he shouldn't be bored and pity the beautiful. For example, the Gokudo Path Cultivation Record, Frozen Demon Wolf Sword, Combat Rhapsody, Sword Demon, Other World, Magic Recording Machine, Legend of Hiding from Beauty, Infinite Horror, Seeking Truth, Wings of Blazing Heaven, Summoning Thousands of Soldiers, Heroes of Different Forms, Brothers who know about it should know my preference for the male lead. It's either cold to the end or calm and composed. The male lead is not affected by external factors. Of course, other aspects are not so strict. It doesn't matter if there are many female leads, as long as there are no stallions.