Leak: Line TO- Heater Core (1991 Celica)

At 1st, I thought it was a head gasket failure!
Major relief to see the leak pop elsewhere...

Leak:Engine-Side-Hose TO-> Heater Core (1991 Celica)

I've got a water leak on a 91 Gen 5 Toyota Celica GT,
(ST184 frame, 2.2L 4-cyl. 5-speed)
that's 1 of the 2 lines going to the heater core,
inside the engine-side of the firewall.

I'm looking for someone's "easy" experience/tips
to replace the hose:

But this hose appears to be w/ some sort of pressure fitting;
I don't see a clamp, or removable assembly;
Any Toyota gear heads in here? ;)

Toyota VIN indentification: 0'd out the last 3 digits:
http://www.toyodiy.com/parts/q?vin=JT2ST87N6M0079000

The hoses leading to the heater would have clamps on them at both ends, the heater and engine side. Remove what ever that is obstructing to get a clearer picture.

At heater side, do not use force to disconnect the hoses as you can damage the connections, Try slitting the hoses to get them off as the could be stuck hard.