A teenage boy jailed for at least 15 years for the stabbing murder of Melbourne woman Laa Chol at an Airbnb party wants his conviction overturned.
The boy, who cannot be identified because he was 17 at the time, gatecrashed the CBD party in July 2018 and stabbed 19-year-old Ms Chol in the chest.
Her killer is seeking leave in Victoria's Court of Appeal to have his murder conviction overturned.
Barrister Paul Smallwood on Tuesday argued the stabbing did not meet the legal threshold for murder.
He said it was not open for the jury to have concluded beyond reasonable doubt the boy intended to murder or cause really serious harm to Ms Chol.
The boy was jailed in December 2019 for a maximum of 20 years. He was ordered to serve 15 years before becoming eligible for release on parole.
The jury rejected his plea at trial to be convicted of the lesser crime of manslaughter.
Ms Chol died at an EQ Tower apartment she had rented on Airbnb for a weekend with friends.
The boy gatecrashed the party. Ms Chol discovered her phone was missing and kicked the intruders out.
She was stabbed during a scuffle, part of which was captured on CCTV, in the lift lobby.
The knife penetrated her chest cavity and heart, and she stumbled back into the apartment and collapsed.
Mr Smallwood said the stabbing occurred during a spontaneous fight, it was not premeditated and there was no animosity between the pair.
Prosecutor Patrick Bourke QC, who opposed the appeal bid, said the stabbing was a deliberate and forceful act committed at close range.
"It's not a wild flailing around with the knife ... it's a full forceful swing of the arm," he told the court.
Justice Chris Maxwell will hand down his decision at a later date.