Advertisements help us cover the cost to keep karasu-os online.
Please consider whitelisting karasu-os.com to keep the website free for everyone!
Or support us on Ko-fi to gain ad-free access.
Collected by 6.13% of users
by 0.09% of users
Effect: Charm x4.5
Inventing is Hard Work
Inventing is Hard Work (Unlocked)
*There are misnamed rewards (especially icons). Please let us know through
so we can fix it. Thank you!
Lv.10 Rank Up
Lv.20 Rank Up
Lv.30 Rank Up