well, engine oil can leak at many different places.
apparently, according to honda malaysia, the "Valve Head Cover Seal" is a common culprit, and Honda has ready made repair kits for that, it's around RM200.
also, another possible cause is the oil pan, you might want to check your drain nut area.
however, piston rings may also cause "coking" or "cooking", which burns off engine oil, and loss of compression, so it might be worth doing a compression test to check whether this is the issue.
if the car milege is low, then it might not be the piston rings, so a complete overhaul may not be necessary, as it is both expensive and time consuming.