Five distinct, static character style studies for the facility-prop visual direction. Includes all C01–C05: sculpted technician, chunky caretaker, angular surveyor, adult toy-proportioned porter, and elongated observer. This is a design-study bundle, not a user-selected final style or a production character pack. You receive five separate GLB models, one organized Blender file, authored Python source plus fixed cloth input, original comparison images, 42 render PNGs, and an EN/KO customer guide and license. The existing Break Room sofa appearing in context renders is only a scale reference; its model is not included or counted as a sixth character. Static limitations: no rig, skin weights, animation, facial blendshapes, deformation-ready retopology, complete UV unwrap/atlas, image textures, LODs, collision, engine prefabs or game logic. Solid-color PBR materials only. Not certified game-ready; engine compatibility and runtime optimization are unverified. Blender 4.3.2 static reimport/re-export was reviewed, with normal serialization difference up to about 0.123 degrees, not exact byte identity. C04 depicts an adult with toy-like proportions. AI disclosure: AI assisted the model-generation Python code, meshes, garment/face construction, PBR palette, rendered images and documentation. Four fixed authored cloth mesh inputs derive from the reviewed prior native model; the render images are of the actual Blender geometry, not substitute illustrations. No third-party model/image assets are included. License: personal/commercial finished-work use and modifications are permitted. Do not resell or redistribute standalone original or modified source assets or libraries. See the included LICENSE.txt. 静的キャラクターデザイン研究5種（C01～C05）。最終キャラクター仕様・リグ・アニメーション・完全UV・ゲームエンジン検証は含みません。C04は玩具風の比率を持つ成人です。利用条件は同梱ライセンスをご確認ください。