(translated roughly as “Touch/Grope JK” – with JK referring to joshi kōsei , or high school girl) represents a subgenre of interactive Live2D implementations where the user can directly click, drag, or “touch” specific body parts of a Live2D character, triggering reactive animations, audio, and parameter changes.
Example parameter mapping:
| Body Region | Parameter ID | Deformation Behavior | |-------------|--------------|----------------------| | Head (pat) | ParamAngleX | Slight rotation + blush intensity | | Chest (touch) | ParamBreastL/R | Squash/stretch based on drag delta | | Hip (drag) | ParamHipSqueeze | Horizontal/vertical compression | | Eye (poke) | ParamEyeOpen | Rapid close/open (wink + shock) | In the .model3.json or through Unity’s CubismHitDrawable , developers define invisible colliders attached to specific drawable IDs. These are not for physics – they are for input raycasting. live2d osawarijk