It should be a "wa", although written as "ha" it's "wa".
This screwed me over in like my first year of Japanese
*nod*Hoo...Oh my! It's I-class-chan?Ii!*clatter*Hoo! Hoohoo!She was readily accepted.I wonder where this girl came from?*nod*Ii!
Iii!Welcom- Oh my?Ii!Heehee...
You really saved us by helping out~