I guess this is the "First" ever CoLS Secret ending speedrun, Since there's no sub category for each ending there.

User Note: The audio on the 2nd to last floor [Floor 14] cut off on 40:58 due to I've switched headphones since it's about to run of battery (Yes I do use a bluetooth headphones!)

also did fall a few times.

Edit: the run was recorded at 15th of september! Mod Note: Retimed from 1:15:01.95 to 1:15:01.76