Circumstance
What were the circumstances

「Since my daughter attends a private school, online lessons have started, but the URLs and meeting links of online lessons, passwords, and distributed materials are sent separately for each lesson…which is confusing even for adults. 」
「My daughter started crying just because she was late and couldn’t prepare for the class during interval…」
The Online Age

Students have 6-7 classes everyday and moreover, mails sent for the lessons, classes are different and are not in any particular order. In addition, homework will be given after the class, which makes it a pain to organize these contacts. It is difficult even for an adult to segregate these many emails.
In the past, information transfer was carried out in a physical space i.e. schools and classrooms, but here we are just reminiscing the functions that the “classroom" has.
Looking at the situation of the students as a whole, and not each individual, it looks like the situation is as shown in the figure. As expected, we were convinced that this would not convey information well.
「That’s why IT doesn’t work. I’ve heard people say, “It should be a class where people face each other," but just as analog has its own strengths, IT has their own merits too; is what we figured and started looking for a solution. 」