Return of Jelda

Its prequel Jelda of which the article below might be referring to was not released on MSX.

This game required a bit of detective's work to get any information on its origin. It was only released in Japan by Carry Laboratories, which is the only company credited in the code. And nothing would have disturbed the image of Return of Jelda as a Carry game if it weren't for a tiny casual mention in the weekly business magazine The Econo File. Focused on SunA's first self developed arcade game, the article goes on name-dropping a few more active developers, including Softmen. The team is stated as having finished a contract with Carry to export a game "Jelda". Depending on what the jury's gonna say on Olion, however, this may have to be taken with a grain of salt as well.

Source: http://www.hardcoregaming101.net/korea/part1/company-softmen.htm