On May 5, 2022 via tvN 'Unexpected Business 2' ep.11, Hanh Hyo Joo was spotted wearing OSTKAKA cardigan, Lemaire dress.
You can shop Sailor Collar Knit Cardigan (KRW 199,000) from wconcept.com, Splatter-Print Midi Shirt Dress ($1,250) from farfetch.com right now.