  The protostar IRAS 15398-3359 is associated with a bipolar molecular outflow
ejected in an nearly northeast-southwest (NE-SW) direction which has been
extensively studied. It has been suggested previous episodic accretion events
by this source. Furthermore, the analysis of the morphology and kinematics of
the molecular outflow revealed the presence of four $^{12}$CO(2-1) bipolar
elliptical shock-like structures identified in both lobes. These structures
seem to trace different ejections inclined $\sim$10\deg on the plane of the sky
from each other. This led to the hypothesis that the outflow axis likely
precesses and launches material episodically. We analyze ALMA archive
observations in Band 6, revealing the presence of low-velocity ($<3.5$km
s$^{-1}$) emission from the line $^{12}$CO(2-1) to the south and north of the
protostar. We study the morphology and kinematics of the gas, which seems to
support the hypothesis of a precessing episodic outflow. The ALMA observations
reveal a north-south (N-S) outflow most likely associated with the IRAS
15398-3359 protostellar system. This outflow could be older than the
well-studied NE-SW outflow. The orientation of the N-S outflow is 50\deg -
60\deg on the plane of the sky away from that of the NE-SW outflow. We also
analyze the Spectral Energy Distribution of a far away young star and
preliminary discard it as the driver of the SE outflow remnants. The new
observations support the hypothesis of strong episodic accretion-ejection
events in IRAS 15398-3359, accompanied by dramatic changes in the orientation
of its ejection axis, implying that all the outflows in the region may have
been driven by the same protostar.
