Is it happy end?
Yes
Do the MC get together then?
Yup
Does the white haired dude find out that the mc switched bodies
He found out earlier in the story
Where can I find the raw version? Is it translated in other languages?
Do they stay together?
Yea but I wouldn’t think how they are now will really contribute to the relationship. Pretty shit if you asked me ┑(￣Д ￣)┍