We have an existing Grader app, which grades test papers through through smart phone camera (see http://grader.school for video sample). Prior to this, we primarily focused on the B2B market as it is very obvious. However, we see an opportunity in the B2C market where individual teachers can benefit from our features. We have talked to teachers from many different schools and find that they're willing to pay for such service by themselves, and we think that LINE platform would help with the delivery. Because of the nature of the app, we see performance gaps across different devices, and is especially troublesome for older devices. Instead of using our Grader app to grade papers, teachers would instead submit photo of the papers snapped via their smartphone camera to our LINE bot. The bot would then process the papers and report back the results. We can also provide analytics and recommendation on how they can make their tests better. This would immediately empower teachers worldwide allowing them to save countless hours from grading test papers and letting them spend more time with their students.