Because it's the box format used, that is indeed the correct tag to add.
Ah...
They're
my sports clothes...
from high...school...
Haa...They exercised together afterI...In these clothes?It's squatsI bought this...
mh...
popular...
Video game...
Because I wanted to try...
to exercise more!
Haa...Ah...
Taito...kun...
Haa...
Welcome...backHa...Haaaaa, Hakua what are you doing!?