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In PSO2, Units will affect your appearance. You may not wish for this to happen as it removes control over how your character looks, or because the unit itself is just plain ugly. This page will show you how to hide them.
First, press F2 to bring up your inventory, then go to the 3rd tab. Equipped units are indicated by being highlighted yellow and with a tick mark next to them.
Click on a unit to bring up this pop-up menu. Click the 3rd button on it, highlighted in light blue in the above picture. This is the “Stealth” button. Clicking it will hide the unit, or un-hide a hidden unit.
When hidden, a unit’s icon will change to how they are displayed in the above picture.
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Ah! Thanks for this helped alot ^^