One of the baby names I want turns out to be a video game character?

Setsuka would be pronounced Set-Soo-Kah according to Japanese pronunciation. If you want it pronounced Set-Sah-Kah it would be spelled Setsusaka according to Japanese rules. But since you basically made it up, I guess spell it any way you want. In English I think Setsakah would be the easiest to pronounce the way you want.