From the name alone, the addon probably adds a custom entity or NPC named “Jenny Miko-chan” with unique behavior (e.g., following the player, trading, animations, or dialogue). The “portable” tag might mean:
The Jenny Miko Chan Addon is a "universal modification" that adds high-detail NPCs—primarily characters named and Miko Chan —to your Minecraft world. Unlike standard Minecraft mobs, these companions are designed with:
: Missing the secondary paired asset component. Behavior files handle logic data, but cannot display models or pixels independently.
Even with a simple addon, things can go wrong. Here are some fixes for common problems.