Answer
Ai Kayano's notable role in the romantic comedy anime genre is Ritsu Kawai in "Bokura wa Minna Kawaisou." Ritsu is an energetic and often eccentric high school girl known for her infectious laughter. She is part of the Kawai Complex, a quirky apartment where various tenants reside. The anime revolves around the comedic and heartwarming interactions among the tenants and Ritsu's blossoming relationship with the male protagonist, Kazunari Usa.