Hi, I'm Haruka.
'harupi' is created from 'Haruka', Haru-(ka)change to (pi), so it's harupi!
It a cuter way to address kids or couples calling each other for Japanese.
And please know that I'm not a Japanese. Just adapted to Japan.(-_-) Further profile.
And, read my blog for more Sweetly Ever After episodes!(^-^)