I love Matsujun just as much as the next Arashi screaming fan girl. I mean seeing him in HYD is the main reason I started watching dramas; so it pains me to write this review. I think that Natsu no Koi is a hate it or a love it drama. You read the synopsis so you get the idea- but the execution seemed so strained and artificial. I know the whole drama is about a bad actor becoming good and struggling in the shadows, but the whole time you saw a guy playing a bad actor.
Enough with Matsujun- the rest of the cast was brilliant including the kid (who occasionally stole the scene). The actress who played Shiori constantly revived the drama- and brought depth to her character, just like taiga's mother.
If you watching it now it gets better after about episode 5 or 6. Initially the snail pace developments seem excruciating, but it starts to pick up and seems to come to a point. I cant say I recommend this, if you love matsujun watch him in kimi wa petto, saigo no yaksoku, or any of his other dramas. If you have time like lots of it, watch this drama .This drama has really pretty scenery but is really hard to relate to.