Linked by a Doll, I Begged for My Stepbrother's TouchEpisode 4

Olivia accidentally gives her stepbrother Lucas a custom doll that shares her every sensation. When Lucas uncovers the secret, he starts testing her during a business meeting, and she strikes back with a matching doll of him. Trapped together by a storm, the two finally face years of misunderstanding: his coldness was only hidden love.