Blame Adam West.
As a child in the 70s, Mr Eric Chong would watch the actor in the iconic Batman TV series.
This sparked his obsession and he soon started collecting everything he could associate with Batman.
Now 47, Mr Chong's collection is expensive and expansive. So much so that it is spread throughout his own home, his father's HDB flat and a rented room-sized warehouse space.
In his father's flat, there is an entire wall of drawers and shelves housing a part of his collection. Posters of Batman share wall space with family portraits.
The storeroom is also full to bursting with merchandise.
His father - an avid collector of Coca-Cola merchandise - helps Mr Chong with the yearly maintenance of his comic collection.
Mr Chong's son also shares his interest in comic books.
Mr Chong collects everything from vintage toys and figurines to movie posters, original artwork and sketches and of course, comic books.
He estimates he has over 5,000 comics spanning from 1947 - dubbed the Golden Age of comic books - to today.
He has sent many of his comics to be graded by the Certified Guaranty Company (CGC), an independent company that rates the condition of comic books on a scale of 0.5 to 10.0. 10.0 is the "ideal" state. Mr Chong owns several 9.8 "near mint" condition comics.
The CGC seals the comic in a transparent archival capsule for preservation.
He has several Signature Series sealed comics, certified that the comic has been signed by the artist or writer.