According to kakaopage (official korean website of this comic) it comes back June 12th. Here is the og message translated from korean:
hello! Dear readers:)
<The Disaster Hero Has Returned> [June 12 (Wednesday) 22:00 PM] We would like to inform you that it will return with episodes 75 to 78.
It will be serialized once a week starting from episode 79.
We ask for your interest and support.
thank you!
MC Leon ends up with Karen, Blonde Leon with the blonde girl in first chapters (she is in love with mc, but thinks she is not good enough for him) and saintess has no romance (she only admires Leon)