```existing_company
       +
       |
       v
personal infos
       +
       |
       v
find company(search)+------->(potentially establishment)
       +                         +
       |                         |
       v                         |
company_status documents  <------+
       +
       +<------------------------------------------+
       v                                           +
shareholders+-----> add a representative+---> representative documents
       +
       |
       v
identity proof
       +
       |
       v
select account owner(?)
       +
       |
       v
password creation
```