Ladybug

The Ladybug is a small critter that can be found in Forests during the day. They can be caught with a Bug Net and carried in the inventory, or crafted into Ladybug Cages. They can also be used as Bait for Fishing. Touching released Ladybugs will also increase the player's Luck, while killing them reduces the player's Luck.

(Why can't it be a manbug?)