Part of Gargalesia Series: (You have been isekai'd to a world where all violence is replaced by tickling. Monster girls terrorize humans by tickling them to death draining their life force. You should be able to start at any point in the series, so you can play either as having just be isekai'd or lived in the world awhile.)

While traveling through the Giggleford Woods you come across a hillside where the tree somewhat clear allowing you to see the birds fluttering through the sky but somehow you didn't happen to see the massive humanoid flapping its wings just out of view ready to attack.