Sushi Mugen, formerly Sushi Marche, is a Leslieville favourite for sushi takeout. Since its reincarnation it has expanded its menu to include a wide variety of appetizers as well as Japanese standards like chirashi, teriyaki and udon noodles.
The space itself still functions as mostly a takeout joint, although there is a very casual table for those brave enough to dine in.
Sadly, the quality of the raw fish has diminished from its earlier days. While it's still arguably a cut above most sushi joints out there - it's definitely not the same. John Lee would have never been caught serving tilapia sashimi and other lower quality cuts.