Erik Bruner-Yang, owner and chef of Toki Underground and Maketto, has pleaded guilty to simple assault charges stemming from an attack on his ex-girlfriend’s fiancé back in June.

Erik Bruner-Yang, the chef at the madly popular H Street NE ramen restaurant Toki Underground, and his wife, Seda Nak, were arrested Wednesday morning in a domestic dispute at the Petworth home of the chef’s ex-girlfriend.