Sites like Comic Walker or Nico Nico Seiga often host the latest chapters of manga series legally and for free (in Japanese).
Deeper insights into the motivations of the supporting cast.
Raw chapters are available as soon as they are released in Japan, usually via official digital magazines. A Note on Reading Sites
Many official apps offer "wait-for-free" models that allow you to read high-quality chapters legally.
They may not support the original creators or artists.