After her
mother
remarried，
high
schooler
Honoka，
who’s
a
bit
of
a
delinquent，
gained
a
step
sister
older
than
her
-
Nagisa.
Having
a
new
family
so
suddenly
made
Honoka
rather
uneasy，
and
she
sought
to
put
some
distance
between
herself
and
Nagisa.