Kosuke is excited to mentor Arisa Himeki, the new girl at work, but first he needs to stop making her cry. As he begins showing his cute coworker the ropes and help her along, could it be that Natsuna's jealous...? Nothing seems to be going her way-from picnic planning, to her love life, to mending the neighbors' marriage-but Natsuna is prepared to take matters into her own hands...or at least try to.