Sesshu is a Japanese-first AI video generator (English available). Text-to-video, image-to-video, reference-to-video; models Seedance, Kling, Veo, Hailuo, MiniMax, Grok Imagine. Ratios 16:9/9:16/1:1, 4–8s clips. Google sign-in gives 48 free credits (30 days), no card required.