Hi, thank you for playing through the whole game and spent time sharing your feedback with us! The game could be easy for people who are good at solving puzzles, and the full run of the story should take around 3 hrs, I guess you should be pretty smart on solving puzzle! ;) We've actually also included canvas collection in game for people who like to collect hidden things, and hope to provide a bit more fun... Regardless of everything, we hope you did have some fun during the adventure, and as we are a young indie team, we’ll be more than happy to have you in our discord group and share more detailed feedback/suggestion with us. (Sorry if the translation looks bad, our customer service isn't that good at Japanese )(*pωq*)