The result is a far more intimate form of character interaction than traditional visual novels – which is precisely why it remains popular in niche hobbyist and adult game communities.
For developers, building a basic OsawariJK prototype in Unity takes roughly 4–6 hours:
Developing interactive companionship apps or games. The Future of Interactive 2D
In the .model3.json or through Unity’s CubismHitDrawable , developers define attached to specific drawable IDs. These are not for physics – they are for input raycasting.