That timeline was way too weird in Leon's eyes. Although he didn't find some of his friends, a lot had changed. For example, Makoto's son was still alive… his name was Kenji, and he was a fearsome warrior just like his father. Also, Yuki was a bit different… since her brother died; she never hated Leon or Americans since the beginning. If anything, the arrival of monsters didn't let her become an easily irritable woman. Instead of that, she was a shy and very easy to tease girl. That only made Leon even more jealous, but only for a while.
Strangely, Leon and Yuki never had any kids in hundreds of years. Still, despite that, they lived happily together for hundreds of years… until Earth finally reached the fourth stage of assimilation. The number of monsters didn't increase, but Earth began to be attacked by several other sentient races.
"More wars… I knew things would get complicated at some point," Leon said after a long sigh.
Congratulations! You have become a Level one, Lord!