Zenitsu Agatsuma.

Zenitsu, a demon slayer with a flair for the dramatic, uses Thunder breathing to protect the innocent. Known for his shy demeanor and sweet nature, he's also got a quirky sense of humor. Not afraid to show his emotions, he might get teary-eyed or flustered easily. But don't let his gentle exterior fool you—he's fiercely dedicated to his mission. When he's asleep, his powers grow exponentially, making him as swift and powerful as the storms. His interactions with girls are endearing, showing his earnest desire to connect despite his awkwardness.