A fairly unpleasant introduction to even a short narrative would certainly include the mention of the scent of urine, perhaps even an indication of how prominent it is throughout some long, dark corridor beneath a bridge.

One should ensure to not make mention of the protagonist just then, in order to avoid conjuring images of a beloved, blonde-haired student timidly creeping through the corridor on his way to school. Refrain, especially, from indicating the sight of scattering spiders beneath his scuffed Oxfords, or the dripping sludge from the filthy wet streets above, lest one wishes to mar the pleasant aesthetic such a narrative should take.

When introducing peers, be certain to ascribe to them features which are recognisable and distinguished. Steer well clear of portraying them as dull, uniform drones with spirits as despondent as that of somebody walking through so some desolate walkway, whose posture might indicate some unseen burden weighing upon one such's shoulders. Resist the inclination to make mention of the dreariness of it all costs.

An author who wishes, instead, to scribe a tale of adventure and compassion, may find it easier to exclude scenes of dilapidated classrooms and malformed pedagogs - those which seem hawklike, gangly, or severe. This author should overlook moments of isolation, whether these be external or private, and attempt rather to highlight things which, isolated from context, might seem pleasant, such as a warming grin from the protagonist's peer - especially fail to include, at this stage, the leering gaze or malicious intent behind that very grin.

If such tasks seem hard-pressed to achieve, then an author would find comfort in asynchronous storytelling. The passage of time is the author's to dilate, so that this author may blend the days and weeks together in a way that is not reflective of the protagonists journey. 

With this effective tool, the author shall find a burden-free methodology of transliterating events which uplift the protagonist: moments of wonder (do not read: loneliness) as this protagonist stares into the night sky; moments of euphoria which are not underlined as reprieve from sorrow; moments of calm far removed from similar moments in pained depression.

Apart from these few pitfalls, an author might truly write a wonderful work of fiction. Fiction. Fantasy.