MATURE CONTENT DESCRIPTION
The developers describe the content like this:

This game is a lighthearted and enjoyable game that depicts the story of a furry prince and six princesses of different species, who must bear offspring to revive the kingdom.
Nudity
Explicit Sexual Acts

ABOUT THIS GAME
"The rebirth of Kingdom Lo" is a game developed by さんかっけい, including maps, music, characters, and storytelling, created by a single person.

In the game, you will play as a kemono prince who shoulders the mission of re-birthing the royal family and the kingdom in the upcoming coming-of-age ceremony.

You will cultivate the heirs of the kingdom with six princesses, carefully choose your conversations with them to gain their acceptance.