Face AI characters before the conversations that matter. Practice 80 Japanese and English situations in a familiar messenger interface, improve five core skills, and climb the weekly league. Free on-device practice stays private; ranked challenges use the optional Studio Uchu AI membership.
Practice small talk, work, interviews, dating, family, and complaints across 80 Japanese and English scenarios. A focused battle frame adds tension while the conversation itself stays a clear, familiar messenger.
See your total score, clarity, empathy, listening, topic development, and politeness together with your personal best. When you improve, the result screen makes that progress immediately visible.
Free practice uses Apple's on-device AI, needs no account, and keeps conversations on your device. Optional cloud practice is sent only after your consent through Cloudflare to an OpenRouter route requiring Zero Data Retention. Studio Uchu does not store conversation content.
Take the same daily challenge as everyone else. Your best score each day counts, your top five days become League Points, and Japanese and English rankings stay separate. Only an anonymous learner code appears publicly.
Practice history and score trends are brought together in one Progress tab. Choose Small Talk, Work, or Interviews on first launch, and Talksim brings the most relevant challenges to the top.