If you're looking for a chatbot that's specifically tuned into anime culture, korewa.AI is a great option. The service lets you build your own anime characters, defining traits like personality, memory and emotions, and uploading photos to convey emotions. Characters can remember conversations and learn to respond differently over time for a remarkably immersive and realistic chat experience. Korewa.AI also has a lot of features, including a free Demo plan and a $10/month Premium plan, so you can pick the level of service that suits your needs.
If you want something a bit more creative, Yodayo is an AI-powered service that lets you build characters and then chat with them. It's got a Tavern where you can chat with anime-style characters, so it's a good option for anime fans who want to explore both the art and chat aspects. Yodayo has a subscription plan with YoBeans that you can earn through various activities, so you can keep the creativity going.