Global Reincarnation: Only I Know the Plot - Chapter 934:

The ancient empire was on its last legs, the nascent federation echoed with the roar of steam, slumbering gods gradually awoke, and colossal beasts that vanished in the primordial era were slowly emerging.When Laine arrived in another world, a magical profession panel awakened within him as well.Laine believed that if a person's life could keep growing stronger, one day they would certainly be able to control their own destiny and stand shoulder to shoulder with the gods!

I got transmigrated into a game I’ve never seen before.

I thought it was a top-notch RPG and spent 30 years on it.

I retired as a war hero and planned to spend my remaining time leisurely.

But it turns out, it was an academy story?

It’s a affair between a loyal dog servant and his master.

- Description from Novelupdates

This book is about baby-making.