Is the problem serious?

However, isn't it true that in the outside world, there are a lot of these lakes?

So why can't Gensoyko have dams?

Something called "dams"...

Something called "dams"...

The main purpose of dams is to obstruct and hold water, as well as for hydro-electric power...

Especially hydroelectric power, because the masses thinks it's a form of clean energy, so it's highly focused on...

But a dam is not that easy to construct.

But a dam is not that easy to construct.

Really?

Firstly, it will hinder the carps jumping the Dragon Gate!