Gym near Jiantan MRT

Does anyone know of any gyms walking distance from Jiantan MRT? (There’s a place called “Body Charger” next to the station - but never open, so appears to be closed down). I tried searching online, but I mostly found broken links and incomplete information. I’m also, asking on here, as someone might have noticed small independent gyms that I haven’t noticed. I’m looking for a month membership only.

Bodycharger sells equipment, they told me they would open a gym like 13 years ago and they never did. There are no independent gyms in that area and none of the big gyms will do a monthly membership.

The Shi Ling Sports Center isn’t too far away from the MRT station. Maybe 10 minutes.
Here’s the address.
台北市士林區士商路一號
It’s only NT$50/hour.
http://www.slsc-taipei.org/big5/floor_in.aspx?fid=26