can anyone identify this drain plug?

[graham1028]

Does any one know what this bolt is for or what fluid was behind it? Without thinking I removed the bolt on the bottom what i would call the bellhousing (see photo, area between engine and trans where i assume torque converter is) and some bluish (possibly trans fluid im think) came out. If it is trans fluid, or transfer case maybe? I cant find anything online for this. Rogue is a 2023 SV AWD 3 cyl turbo. thank you!

[VStar650CL]

It's trans (CVT) fluid. That's the leveling plug, it's used to get the correct fluid level when you haven't measured or don't know how much you took out.