--
A few years passed by...
Godwyn, Gilderoy, and Gerald had grown into fine young men under the strict but loving care of their parents. Of course, they've grown stronger too, reaching the later stages of the Planar Traveler Realm at the tender age of 18. This progress couldn't be said to be slow; it's just moderate for geniuses like them.
They could've reached a higher realm of strength if they truly wanted to. But since it's peacetime and they're putting more emphasis on building the perfect foundation to eventually start their journey through life evolution, this little bit of stagnation was acceptable.
It's not a big deal either since these boys are strong enough to fight people who are a major realm higher than them. All of it was thanks to their hard work and efforts.