Tanjiro the Blockhead
Runa was asking Tanjiro if he likes Kanao and he said that he does. That excited Runa because it meant that Kanao could confess easier; however, things took a turn when Tanjiro states that Kanao is a good friend. As Tanjiro continues their conversation, Runa face palms thinking how dense Tanjiro is. She mutters that this is gonna take longer than she thought.